Union of India - Act
The Standards of Weights and Measures (General) Rules, 1987
UNION OF INDIA
India
India
The Standards of Weights and Measures (General) Rules, 1987
Rule THE-STANDARDS-OF-WEIGHTS-AND-MEASURES-GENERAL-RULES-1987 of 1987
- Published on 1 July 1987
- Commenced on 1 July 1987
- [This is the version of this document from 1 July 1987.]
- [Note: The original publication document is not available and this content could not be verified.]
1009.
In exercise of the powers conferred by section 83 read with section 22 of the Standards of Weights and Measures Act, 1976 (60 of 1976), the Central Government hereby makes the following rules, namely:-| Vide G.S.R. 619(E), dated 1-7-1987, published in the Gazette of India, Ext., Pt. II, section 3(i), dated 1-7-1987. |
Chapter I
Preliminary
1. Short title and commencement
.-(1) These rules may be called The Standards of Weights and Measures (General) Rules, 1987.2. Definitions
.-In these rules, unless the context otherwise requires,-Chapter II
Specifications Of Standards Of Weights And Measures
3. Reference standards
.-(1) Every reference standard weight shall conform, as regards denomination, material used in construction, and design to the specifications laid down in Part I of the First Schedule.4. Secondary standards
.-(1) Every secondary standard weight shall conform, as regards denomination, material used in construction, and design, to the specifications laid down in Part I of the Second Schedule.5. Working standards
.-(1) Every working standard weight shall conform, as regards denomination, material used in construction, and design, to the specifications laid down in Part I of the Third Schedule.6. Power to specify any other reference, secondary or working standard measurements
.-(1) Any other reference standard, or secondary standard, or working standard shall conform as regards the denomination, material used in construction, and design, to such specifications as the Central Government may, from time to time, by notification, specify.Chapter III
Specifications Of Standard Equipment
7. Reference standard balances
.-(1) A set of reference standard balances shall be maintained at every place where the reference standard weights are kept for the purpose of verification of secondary standards.8. Secondary standard balances
.-(1) A set of secondary standard balances shall be maintained at every place where the secondary standard weights are kept for the purpose of verification of working standards.9. Working standard balances
.-(1) A set of working standard balances shall be maintained at every place where the working standard weights are kept for the purpose of verification of weights intended to be used for transaction, or protection, or industrial production.10. Power to specify the standard equipment
.-The Central Government may, by notification, specify such other standard equipment as it may think necessary to carry out the provisions of the Act and every such standard equipment shall conform, as regards the metrological qualities, to such specifications as the Central Government may, in the same notification or subsequent notification, specify.Chapter IV
Weights Or Measures And Weighing And Measuring Instruments
11. Weights
.-(1) Save as otherwise provided in these rules, every weight used or intended to be used-(a)in any transaction, or(b)for industrial production, or(c)for protection, shall conform, as regards physical characteristics, configuration, constructional details, materials, performance, tolerances and such other details, to the corresponding specifications laid down for such weight in the Fifth Schedule.12. Measures (other than measuring instruments)
.-13. Weighing and measuring instruments
.-(1) Every weighing instrument used or intended to be used-(a)in any transaction, or(b)for industrial production, or(c)for protection,shall conform, as regards physical characteristics, configuration, constructional details, materials, performance, tolerances and such other details, to the corresponding specifications laid down for such weighing instrument in heading B [to F] [ Inserted by G.S.R. 665(E), dated 25-9-2002 (w.e.f. 1-11-2002).] of the Seventh Schedule:Provided that , for a period of [twelve] [ Substituted by G.S.R. 591(E), dated 8-10-1997 (w.e.f. 13-10-19977.] years from the commencement of these rules, it shall be lawful to make or manufacture any weighing instrument in accordance with the provisions mentioned under heading A of the Seventh Schedule, and every weighing instrument made or manufactured during the period aforesaid in accordance with the provisions of the said heading A shall, so long as such instruments lasts, be deemed to have been lawfully made or manufactured in accordance with the provisions of these rules.14. Weight or measure for domestic use
.-(1) Every weight or measure specified in the Ninth Schedule which is intended exclusively for domestic use or for any use other than in any transaction, or for protection or for industrial production, shall conform, as regards the metrological characteristics and qualities, configuration, constructional details and materials used in construction, to the corresponding specifications laid down in the Ninth Schedule.15. Provisions relating to existing weights and measures
.-Any weight or measure which confirms to the specifications laid down by or under any State or Central law shall, if such specifications are in force at the commencement of these rules, continue to be regarded as standard weight or measure for a period of three years from such commencement notwithstanding that such weight or measure does not conform to the specifications laid down in the First to Ninth Schedule (both inclusive) to these rules and every such weight or measure shall be so modified during the period of three years aforesaid as to make them conform to the specifications laid down in these rules:Provided that if the Director is satisfied that the period beyond three years is necessary for carrying out the modification in such weight or measure, he may extend the period for such further period, not exceeding one year, as he may think fit.16. Procedure for carrying out calibration of vehicle tanks, etc
.-The procedure for carrying out calibration of vehicle tanks, etc., shall be as is specified in the Ninth-A Schedule.Chapter V
Export And Import Of Weights And Measures
17. Registration of exporter and importer
.-(1) Every manufacturer or dealer of weight or measure who intends to export or import any weight or measure shall apply to the Director, through the Controller of the State in which he carries on such business, for registration of his name as exporter or importer or both, as the case may be, in the form specified in the Tenth Schedule.18. Conditions, etc., for manufacture of a weight or measure exclusively for export
.-(1) The provisions of this rule shall apply to weights or measures which are made or manufactured exclusively for the purpose of export.19. Prohibition on sale of non-standard weight or measure within the country
.-No non-standard weight or measure made or manufactured exclusively for export shall be sold or otherwise distributed within the territory of India.20. Maintenance of record in relation to non-standard weight or measure
.-Every person who makes or manufactures any non-standard weight or measure for export shall maintain a monthly record of the number of such non-standard weights or measures manufactured by him, number of weights or measures already exported by him, and number of weights or measure in stock or under production. The record so maintained shall be open to inspection by any officer authorised by the Central Government in this behalf.21. Sample checking of weight and measure
.-(1) Standard weights or measures which are intended for export shall not ordinarily required any verification and stamping, but if the party to whom the export is to be made so requires, a sample checking of such weight or measure shall be made by such agency as the Central Government may specify in this behalf, and thereupon the agency so specified shall, after checking the weight or measure, issue a certificate indicating whether or not such weight or measure conforms to the requirements of the Act and the rules made thereunder.22. Checking of non-standard weights and measures sample which is to be exported
.-(1) Non-standard weight or measure, which is made or manufactured exclusively for export, shall not ordinarily require any verification and stamping, but if the party to whom the export is to be made so requires, a sample checking of such weight or measure shall be made by such agency as the Central Government may specify in this behalf, and thereupon the agency so specified shall, after checking the weight or measure, issue a certificate indicating whether or not such weight or measure conforms to the specifications given by the party to whom the export is to be made or, where the party aforesaid has not given any specification, whether the weight or measure conforms to the specifications laid down by the manufacturer.Chapter VI
Non-Standard Weight Or Measure To Be Used For Scientific Investigation Or Research
23. Permission to get manufactured non-standard weight or measure for scientific investigation or research
.-Where the manufacture of any non-standard weight or measure is needed exclusively for the purpose of scientific investigation or research, the person needing such non-standard weight or measure shall make an application to the Central Government for permission to get such non-standard weight or measure manufactured and on receipt of such application, if the Central Government is satisfied that the manufacture of such non-standard weight or measure is needed for the purpose aforesaid, it may authorise the applicant to get the non-standard weight or measure needed by him manufactured by such manufacturer as he may think fit, and thereupon, it shall be lawful for such manufacturer to manufacture the said non-standard weight or measure in accordance with the specification given by the applicant.Explanation.-For the purpose of this rule, a non-standard weight or measure means a weight or measure which is, or is proposed to be manufactured in accordance with any unit of weight or measure, other than standard unit of weight or measure specified by or under the Act.Chapter VII
Miscellaneous
24. The manner of disposal of goods seized under this Act
.-(1) Where any goods seized under sub-section (1) of section 29 are subject to speedy or natural decay, the Director or any person authorised by him in this behalf shall have the goods weighed or measured on a verified weighing or measuring instrument available with him or near the place of seizure and enter the actual weight or measure of the goods in a form specified by the Director for this purpose and shall obtain the signature of the trader or his agent or such other person who has committed the offence. The goods in question shall, after such weighing or measuring be returned to the trader or the purchaser, as the case may be:Provided that if the trader or his agent or the other person (who has committed the offence) refuses to sign the form, the Director or the person authorised by him in this behalf shall obtain the signature of not less than two persons present at the time of such refusal by the trader or his agent or other person.25. Time within which unverified weight and measure to be verified and stamped
.-No unverified weight or measure, seized under section 29, shall be forefeited if the person, from whom such weight or measure was seized, agrees to get the same verified and stamped within a period of ten days or such extended period from the date of such seizure, and for this purpose, the person making the seizure of such weight or measure shall afford a reasonable opportunity by returning such weight or measure exclusively for the verification and stamping.26. Register and reports to be maintained by persons referred to in section 35
.-Every person referred to in sub-section (1) of section 35 shall maintain a register in the appropriate form set out in the Eleventh Schedule.27. Scale of fee
.-The scale of fees to be collected for the service specified in column (2) of the Twelfth Schedule shall be at the rate specified in column 3 of the said Schedule.28. Use of regional languages
.-Any legend or denomination specified in any Schedule to these rules, which is required to be indicated on any weight or measure in English, or in Devanagiri Script, may also be indicated (in addition to English or Devanagiri) on such weight or measure in such regional language as the manufacturer may consider to be practicable.I
DENOMINATIONS, MATERIAL, SHAPE AND PERMISSIBLE ERRORS IN RESPECT OF REFERENCE STANDARDS(See rule 3)Part I
REFERENCE STANDARD WEIGHTS1. Denominations
| Kilogram series | Gram series | Milligram series |
| 5 | 500 | 500 |
| 2 | 200 | 200 |
| 2 | 200 | 200 |
| 1 | 100 | 100 |
| 50 | 50 | |
| 20 | 20 | |
| 20 | 20 | |
| 10 | 10 | |
| 5 | 5 | |
| 2 | 2 | |
| 2 | 2 | |
| 1 | 1 |
2. Materials
3. Shape and finish
4. Maximum permissible errors
| Denomination | Permissible error ±mg |
| 5kg | 7.5 |
| 2kg | 3.0 |
| 1 kg | 1.5 |
| 500 g | 0.75 |
| 200 g | 0.30 |
| 100 g | 0.15 |
| 50 g | 0.10 |
| 20 g | 0.080 |
| 10g | 0.060 |
| 5 g | 0.050 |
| 2 g | 0.040 |
| 1 g | 0.030 |
| 500 mg | 0.025 |
| 200 mg | 0.020 |
| 100 mg | 0.015 |
| 50 mg | 0.012 |
| 20 mg | 0.010 |
| 10 mg | 0.008 |
| 5 mg | 0.006 |
| 2 mg | 0.006 |
| 1 mg | 0.006 |
5. Protective and carrying case
6. Inscription
The boxes containing the weights shall have the following inscriptions:Part II
REFERENCE STANDARD METRE BAR1. Material
The Reference Standard Metre Bar (hereafter called metre bar) shall be manufactured from 58 per cent nickel-steel.2. Shape and dimensions
3. Finish
The graduated surface shall be bright, highly polished, and free from surface irregularities in the neighbourhood of the graduation marks.4. Graduations
5. Auxiliary scale
6. Setting lines
7. Maximum permissible error
8. Inscription
The metre bar shall bear the following inscription:9. Protective and carrying case
II
DENOMINATIONS, MATERIALS, SHAPE AND PERMISSIBLE ERRORSIN RESPECT OF SECONDARY STANDARDS(See rule 4)PARTISECONDARY STANDARD WEIGHTS1. Denominations
| Kilogram series | Gram series | Milligram series |
| 10 | 500 | 500 |
| 5 | 200 | 200 |
| 2 | 200 | 200 |
| 2 | 100 | 100 |
| 1 | 50 | 50 |
| 20 | 20 | |
| 20 | 20 | |
| 10 | 10 | |
| 5 | 5 | |
| 2 | 2 | |
| 2 | 2 | |
| 1 | 1 |
2. Materials
3. Shape and finish
4. Maximum permissible error
| Denomination | Permissible error ±mg |
| 10 kg | 50 |
| 5 kg | 25 |
| 2 kg | 10 |
| 1kg | 5 |
| 500 g | 2.5 |
| 200g | 1.0 |
| 100 g | 0.5 |
| 50g | 0.30 |
| 20 g | 0.25 |
| 10g | 0.20 |
| 5 g | 0.15 |
| 2 g | 0.12 |
| 1 g | 0.10 |
| 500 mg | 0.08 |
| 200 mg | 0.06 |
| 100 mg | 0.05 |
| 50 mg | 0.04 |
| 20 mg | 0.03 |
| 10 mg | 0.02 |
| 5 mg | 0.02 |
| 2 mg | 0.02 |
| 1 mg | 0.02 |
5. Protective and carrying case
6. Inscription
The boxes containing the weights shall have the following inscriptions:-Part II
SECONDARY STANDARD METRE BAR1. Material
The secondary standard metre bar (hereafter called metre bar) shall be manufactured from 58 per cent nickel-steel.2. Shape and dimensions
3. Finish
The graduated surface shall be bright, highly polished and free from surface irregularities in the neighbourhood of the graduation mark.4. Graduations
5. Auxiliary scale
6. Maximum permissible error
The error on the length between any two graduation marks on the secondary standard metre bar, at the standard temperature of 20°C, shall not exceed the value "e" calculated according to the following formula:e = ± 1 (25 + L/40) micrometresWhere L is the nominal length in millimetres of that part of the metre bar between the two graduation marks, the error on which is being determined. The calculated value of "e" shall be rounded to the nearest integer.7. Inscription
The metre bar shall bear the following inscriptions:8. Protective and carrying case
Part III
SECONDARY STANDARD CAPACITY MEASURES1. Denominations
| Litre series (1) | Millilitre series(ml) |
| 5 | 500 |
| 2 | 200 |
| 1 | 100 |
| 50 | |
| 20 |
2. Material
Secondary standard capacity measures shall be cast out of admiralty bronze of the same composition as is employed in the case of secondary standard weight.3. Shape
4. Maximum permissible error
| Denomination | Permissible error ±ml |
| 51 | 2 |
| 21 | 1 |
| 11 | 0.8 |
| 500 ml | 0.5 |
| 200 ml | 0.4 |
| 100 ml | 0.3 |
| 50 ml | 0.2 |
| 20 ml | 0.1 |
5. Protective and carrying cases
These capacity measures shall be stored in their boxes made from teakwood or any other suitable non-corrosive material with proper housing lined with velvet, chamois leather or soft plastic material. Wood used in such boxes shall be reasonably free from resins and volatile materials. Glue may not be used for fixing velvet or such other materials. Each capacity measure shall be housed in such a manner so as to avoid their excessive movement during transit.Each striking glass of the capacity measure shall be securely housed in proper grooves so as to protect them from breakage during transit.6. Inscriptions
The boxes containing these capacity measures shall have the following inscriptions:-III
DENOMINATIONS, MATERIAL, SHAPE AND PERMISSIBLE ERRORS IN RESPECT OF WORKING STANDARDS(See rule 5)Part I
WORKING STANDARD WEIGHTS1. Denominations
| Kilogram series | Gram series | Milligram series |
| 20 | 500 | 500 |
| 10 | 200 | 200 |
| 5 | 200 | 200 |
| 2 | 100 | 100 |
| 2 | 20 | 20 |
| 1 | 20 | 20 |
| 10 | 10 | |
| 5 | 5 | |
| 2 | 2 | |
| 2 | 2 | |
| 1 | 1 |
2. Material
3. Shape and finish
4. Maximum permissible error
The permissible errors in excess and in deficiency shall be as follows:| Denomination | Permissible error ±mg |
| 20 kg | 300 |
| 10 kg | 150 |
| 5kg | 75 |
| 2 kg | 30 |
| 1 kg | 15 |
| 500 g | 7.5 |
| 200 g | 3.0 |
| 100 g | 1.5 |
| 50 g | 1.0 |
| 20 g | 0.8 |
| 10g | 0.6 |
| 5 g | 0.6 |
| 2 g | 0.4 |
| 1 g | 0.3 |
| 500 mg | 0.25 |
| 200 mg | 0.20 |
| 100 mg | 0.15 |
| 50 mg | 0.12 |
| 20 mg | 0.10 |
| 10 mg | 0.08 |
| 5 mg | 0.06 |
| 2mg | 0.06 |
| 1 mg | 0.06 |
5. Protective and carrying case
6. Inscription
The boxes containing the weights shall have the following inscriptions:-Part II
WORKING STANDARD METRE BAR1. Material
The working standard metre bar (hereinafter called metre bar) shall be manufactured from 58 per cent nickel-steel, or austenitic stainless steel, or stainless steel with 13 per cent chromium or pure nickel (minimum purity 99 per cent).2. Shape and dimensions
3. Finish
The graduated surface shall be bright, nicely polished and free from surface irregularities in the neighbourhood of the graduation marks.4. Graduations
5. Cursor
6. Maximum permissible errors
7. Inscription
The metre bar shall bear the following inscription:8. Protective and carrying case
Part III
WORKING STANDARD CAPACITY MEASURES1. Denomination
| Litre series (1) | Millilitre series(ml) |
| 10 | 500 |
| 5 | 200 |
| 2 | 100 |
| 1 | 50 |
| 20 |
2. Material
Working standard capacity measures shall be pressed out of oxygen free, deoxidized annealed copper sheets of deep drawing quality.3. Shape
4. Maximum permissible error
| Denomination | Permissible error in ml ± ml |
| 10 litres | 8 |
| 5 litres | 4 |
| 2 litres | 2 |
| 1 litre | 1.5 |
| 500 ml | 1.0 |
| 200 ml | 0.8 |
| 100 ml | 0.6 |
| 50 ml | 0.4 |
| 20 ml | 0.2 |
5. Pipette measures
Pipettes of the following description may also be used as working standard measures:6. Delivery time and maximum permissible errors of pipette measures
| Denomination ml | Delivery time in seconds | Permissible error ±ml | |
| Minimum | Maximum | ||
| 10 | 15 | 25 | 0.04 |
| 5 | 10 | 20 | 0.03 |
| 5 | 10 | 40 | 0.05 |
| (Graduated) |
7. Protective and carrying cases
These capacity measures shall be stored in their boxes made from teakwood or any other suitable non corrosive material with proper housing lined with velvet, chamois leather or soft plastic material. Wood used in such boxes shall be reasonably free from resins and volatile materials. Glue may not be used for fixing velvet or such other materials. Each capacity measure shall be housed in such a manner so as to avoid their excessive movement during transit.Each striking glass of the capacity measure shall be securely housed in proper grooves so as to protect them from breakage during transit.8. Inscriptions
The boxes containing these capacity measures shall have the following inscriptions:IV
SPECIFICATIONS FOR STANDARD EQUIPMENT(See rules 7, 8 and 9)Part I
REFERENCE STANDARD BALANCES1. Every reference standard balance shall be of such robust construction and have such metrological qualities so as to ensure the continued good performance, as indicated in paragraph 2.
2. Sensitivity figure/readability and precision of measurement of every reference standard balance shall be such as to give overall precision of measurement of 1 part in one million for weights from 10 kg to 10 g and ± 0.01 mg for weights from 5 g to 1 mg.
Part II
SECONDARY STANDARD BALANCES1. Every secondary standard balance shall conform as regards capacity, sensitivity figure in mg per division, minimum scale division, variation in sensitivity figure with respect to load and overall accuracy of measurement, to the specifications as indicated below:
| Capacity | Sensitivity figure mg/div. | Mini. scale division | Maximum variation in sensitivity figure with respect to load | Minimum overall accuracy of measurement |
| 1 | 2 | 3 | 4 | 5 |
| 20 kg | 25 | 1.5 mm | 10 per cent | 25 mg in 10 kg |
| 5kg | 7.5 | 1.0 mm | 10 per cent | 7.5 mgin2kg |
| 1 kg | 1.5 | 1.0 mm | 10 per cent | 1.5 mg in 500 g |
| 200 g . | 0.5 | 1.0 mm | 10 per cent | 0.5 mg in 50 g |
| 20 g | 0.1 | 1.0 mm | 10 per cent | 0.1 mg in 1 mg |
| 2 g | 0.02 | 0.75 mm | 10 per cent | 0.02 mg in 1 mg |
2. The standard deviation of the 10 consecutive rest points for every secondary standard balance shall not be more than one scale division.
3. The deviation in arm ratio from unity, for every secondary standard equi-arm balance shall not be more than a fraction equal to sensitivity figure divided by full load (both being taken in the same unit).
4. The variation in time periods at different loads for every secondary standard balance shall not be more than 20 per cent.
5. Every secondary standard balance shall be provided with a device so that the contact between the knife-edges and their respective planes is broken when the balance is in arrested position.
6. The secondary standard balance shall, ordinarily, be used for indoor work in laboratories.
7. [ Every secondary standard balance of digital type shall conform as regards value of verification scale interval as given below: [Inserted by G.S.R. 680(E), dated 23-11-2005 (w.e.f. 23-11-2005). ]
| Capacity | Maximum value of verification scale interval | Type of weights to be verified |
| 20 kg | 1 mg | 20 kg to 500 g |
| 200 g | 0.01 mg | 200 g to l mg] |
Part III
WORKING STANDARD BALANCES1. [ Working standard balances may be of the following two types:-
2. Every working standard balance of equi-arm type shall conform, as regards capacity, sensitivity figure, maximum variation in sensitivity figure with respect to load and maximum overall inaccuracy of measurement to the specification as indicated below:
| Capacity | Max. sensitivity figure/division | Maximum variation in sensitivity/ figure | Minimum overall accuracy of measurement |
| 50 kg | 100 mg | 20 percent | 100 mg in 10 kg. |
| 5kg | 10 mg | 20 percent | 10 mg in 500 g |
| 200 g | 1 mg | 20 percent | 1 mg in 100 g |
| 50g | 0.4 mg | 20 percent | 0.4 mg in 5 g |
| 2 g | 0.05 mg | 20 percent | 0.05 mg in 1 mg |
3. Every working standard digital type balance shall conform, as regards value of verification scale interval as given below:
| Capacity | Max. value of verification scale interval | Type of weights to be verified |
| 50 kg | 1 g | Non-bullion: 50 kg and 20 kg |
| 20 kg | 0.1 g | Bullion: 10 kg, 5 kg; |
| Non-bullion: 20 kg to 2kg | ||
| 2kg | 10 mg | Bullion 2kg to 500 g; |
| Non-bullion: 2kg to 200 g | ||
| 200 g | 0.1 mg | Bullion: 200 g and below; Non-bullion: 200 g and below. |
4. The standard deviation of the 10 consecutive rest points for every working standard balance shall not be more than one scale division.
5. The deviation in arm ratio from unity, for every working standard equi-arm balance shall not be more than a fraction equal to sensitivity figure divided by full load, (both being taken in the same unit).
6. The variation in time periods at different load for every working standard balance shall not be more than 20 per cent.
7. Every indoor type working standard balance shall be provided with a device so that the contact between the knife-edges and their respective planes is broken when the balance is in arrested position.
Note.-For verification of bullion or carat weights, only indoor type working standard balances shall be used.V
(See rule 11)Part I – SPECIFICATIONS FOR COMMERCIAL WEIGHTS
Weights (Other than Carat Weights)GeneralThis Part deals with the following ategories of weights:-(A)Iron weights, parallelopiped, ( 50 kg to 5 kg),(B)Cylindrical knob type weights 10 kg to 1 g),(C)Iron weights, hexagonal (50 kg to 50 g),(D)Bullion weights (10 kg to 1 g), nd(E)Sheet metal weights (500 mg to 1 mg)A-IRON WEIGHTS PARALLELOP PED (50 kg to 5 kg)1. Denominations
Parallelopiped iron weights shall ave the following denominations:Kilogram series: 50,20, 10 and 5.2. Shape
3. Material
4. Loading holes
5. Markings
6. Dimensions
| Denomination | A | A' | B | B' | H | C | D | E | F | G/G |
| 5 kg | 150 | 152 | 75 | 77 | 84 | 36 | 30 | 6 | 66 | 12/20 |
| 10 kg | 190 | 193 | 95 | 97 | 109 | 46 | 38 | 8 | 84 | 12/20 |
| 20 kg | 230 | 234 | 115 | 117 | 139 | 61 | 52 | 12 | 109 | 24/32 |
| 50 kg | 310 | 314 | 155 | 157 | 192 | 83 | 74 | 16 | 152 | 24/32 |
| Denomination | I | J | K | T | L | N | 0 | U | V | W | P |
| 5kg | 145 | 5 | 12 | M16x1.5 | 14 | 1 | 2 | 16.5 | 18 | 16 | 5 |
| 10 kg | 185 | 6 | 16 | M16x1.5 | 14 | 1 | 2 | 16.5 | 18 | 1 | 5 |
| 20 kg | 220 | 8 | 20 | M27 x1.5 | 21 | 2 | 3 | 27.5 | 30 | 27 | 8 |
| 50 kg | 300 | 10 | 25 | M27 x1.5 | 21 | 2 | 3 | 27.5 | 30 | 27 | 8 |
| Denomination | A | A' | B | B' | H | C | D | E | F | G | J | K | M | N | P |
| 5 kg | 150 | 152 | 75 | 77 | 84 | 36 | 30 | 6 | 66 | 19 | 5 | 12 | 16 | 13 | 55 |
| 10 kg | 190 | 193 | 95 | 97 | 109 | 46 | 38 | 8 | 84 | 25 | 6 | 16 | 35 | 25 | 70 |
| 20 kg | 230 | 234 | 115 | 117 | 139 | 61 | 52 | 12 | 109 | 29 | 8 | 20 | 50 | 30 | 95 |
| 50 kg | 310 | 314 | 155 | 157 | 192 | 83 | 74 | 16 | 152 | 40 | 10 | 25 | 70 | 40 | 148 |
7. Finish
The weights shall be finished smooth and be free from dross, pits, blow-holes and other defects. They shall be protected against corrosion by applying an appropriate coating which is resistant to normal usage and wear and tear.8. [ Permissible error [Substituted by G.S.R. 27(E), dated 22-1-1997 (w.e.f. 22-1-1997). ]
The maximum permissible errors shall be as specified below:| Denomination | Permissible error | |
| Verification (mg) | Inspection (mg) | |
| 50 kg | 7500 | ± 7500 |
| 20 kg | 3000 | ± 3000 |
| 10 kg | 1500 | ± 1500 |
| 5 kg | 750 | ± 750] |
9. Stamping
The Inspector's seals shall be stamped on the lead pellet within the loading hole. (See Fig.3. and Fig. 4).
B.-CYLINDRICAL KNOB TYPE WEIGHTS (10 kg. to 1 g)1. Denominations
Cylindrical weights shall have the following denominations:Gram series: 500, 200, 100, 50, 20, 10, 5, 2 and 1Kilogram series: 10, 5,2 and 1.2. Shape
3. Material
The weights shall be made or manufactured from brass, gun metal or bronze; grey cast iron may also be used for weights from 10 kg to 200 g but grey cast iron weights shall not be used for weightment of gold; silver, precious metals or their products.4. Method of manufacture
The weights shall be made or manufactured by any suitable method as may be applicable, to the selected material.CYLINDRICAL KNOB TYPE WEIGHTS FIGURE 55. Loading hole
6. Marking
7. Dimensions
| Denomination | U | V | W | H | Y | R | J | K | |
| 10 kg | 100 | 90 | 58 | According to material | 17 | 15 | 3 | 10 | |
| 5 kg | 80 | 72 | 46 | 13 | 12 | 2 | 10 | ||
| 2 kg | 60 | 54 | 36 | 10 | 9 | 2 | 5 | ||
| 1 kg | 48 | 43 | 27 | 8 | 7 | 2 | 5 | ||
| 500 g | 38 | 34 | 22 | 6 | 5.5 | 1.5 | 3.2 | ||
| 200 g | 28 | 25 | 16 | 4.5 | 4 | 1.5 | 3.2 | ||
| 100 g | 22 | 20 | 13 | 4 | 3.5 | 1 | 2 | ||
| 50g | 18 | 16 | 10 | 3 | 2.5 | 1 | 2 | ||
| 20 g | 13 | 11.5 | 7.5 | 2 | 1.8 | 0.5 | 1.5 | ||
| 10g | 10 | 9 | 6 | 1.6 | 1.5 | 0.5 | 1 | Without loading hole | |
| 5 g | 8 | 7 | 4.5 | 1.4 | 1.25 | 0.5 | 1 | ||
| 2 g | 6 | 5.5 | 3 | 1 | 0.9 | 0.5 | 1 | ||
| 1 g | 6 | 5.5 | 3 | 1 | 0.9 | 0.5 | 1 |
| Denominations | A | B | C | D | E | F | G | L | T | I | M | N | P | S |
| 20 g | 3 | 18 | 5.5 | 2.5 | 6.5 | 1.5 | 1 | 9 | M4x0.5 | 5 | 1 | 5 | 5 | 1 |
| 50g. | 4.5 | 25 | 7.5 | 3.5 | 9 | 2 | 1 | I0 | M6x0.5 | 5 | 1.5 | 7 | 7 | 1.5 |
| 100 g | 4.5 | 30 | 7.5 | 3.5 | 9 | 2 | 1 | 10 | M6x0.5 | 5 | 1.5 | 7 | 7 | 1.5 |
| 200g | 7 | 40 | 10.5 | 4.5 | 12 | 2.5 | 1.5 | 15 | M8x1 | 8 | 2 | 10 | 10 | 2 |
| 500 g | 7 | 50 | 10.5 | 4.5 | 12 | 2.5 | 1.5 | 15 | M8x1 | 8 | 2 | 10 | 1 | 2 |
| l kg | 12 | 65 | 18.5 | 7 | 20 | 4 | 2.5 | 20 | M14x1.5 | 13 | 3 | 18 | 18 | 3 |
| 2 kg | 12 | 80 | 18.5 | 7 | 20 | 4 | 2.5 | 20 | M14x1.5 | 13 | 3 | 18 | 18 | 3 |
| 5 kg | 1.8 | 120 | 24.5 | 8 | 26.5 | 4 | 2.5 | 35 | M20xl.5 | 18 | 4 | 24 | 24 | 3 |
| 10 kg | 18 | 160 | 24.5 | 8 | 26.5 | 4 | 2.5 | 35 | M20x1.5 | 18 | 4 | 24 | 24 | 3 |
8. Finish
The weights shall be polished smooth. They may be protected against corrosion by applying an appropriate coating which is resistant to normal usage and wear and tear.9. [ Permissible error
The maximum permissible errors shall be as specified below:| Denomination | Permissible error | |
| Verification (mg) | Inspection (mg) | |
| 10 kg | 1500 | ± 1500 |
| 5 kg | 750 | ± 750 |
| 2 kg | 300 | ± 300 |
| 1kg | 150 | ±150 |
| 500g | 75 | ±75 |
| 200 g | 30 | ± 30 |
| 100g | 15 | ±15' |
| 50g | 10 | ±10 |
| 20g | 8 | ±8 |
| 10g | 6 | ±6 |
| 5g | 5 | ±5 |
| 2g | 4 | ±4 |
| 1g | 3 | ±3] |
10. Stamping
1. Denominations
Hexagonal iron weights shall have the following denominations:-Gram series: 500, 200,100 and 50.Kilogram series: 50,20, 10, 5, 2 and 1.2. Shape
3. Material
The weights shall be made or manufactured from grey cast iron.4. Method of manufacture
The weights shall be made or manufactured by means of any suitable foundry and moulding process.5. Loading hole
The weights must have a loading hole formed at the foundry:6. Marking
7. Dimensions
| Denomination | A | B | C | D | H | P | Q | R | S | T |
| 2 kg | 94 | 101 | 78 | 41 | 10 | 34 | 30 | 9 | 18 | 4 |
| 1 kg | 73 | 79 | 62 | 34 | 8 | 32 | 28 | 8 | 16 | 4 |
| 500 g | 57 | 62 | 47 | 27 | 6 | 23 | 20 | 6 | 13 | 3 |
| 200 g | 42 | 48 | 38 | 21 | 6 | 22 | 20 | 4 | 9 | 3 |
| 100 g | 33 | 38 | 31 | 17 | 5 | 18 | 16 | 3 | 7 | 2.5 |
| 50 g | 27 | 31 | 24 | 12 | 3 | 16 | 14 | 3 | 5 | 2 |
| Denomination | A | B | C | D | E | G | P | Q | R | S | T |
| 50 kg | 236 | 253 | 134 | 170 | 100 | 27 | 58 | 48 | 24 | 102 | 32 |
| 20 kg | 188 | 200 | 112 | 113 | 90 | 21 | 44 | 38 | 19 | 66 | 22 |
| 10 kg | 152 | 161 | 92 | 88 | 74 | 18 | 36 | 30 | 15 | 54 | 19 |
| 5 kg | 125 | 132 | 75 | 65 | 62 | 15 | 29 | 25 | 12 | 40 | 16 |
8. Finish
The weight shall be finished smooth and be free from pits, blow-holes and other defects. They shall be protected against corrosion by applying an appropriate coating which is resistant to normal usage of wear and tear.9. [ Permissible error
The maximum permissible errors shall be as specified below:| Denomination | Permissible error | |
| Verification (mg) | Inspection (mg) | |
| 50 kg | 7500 | ± 7500 |
| 20 kg | 3000 | ± 3000 |
| 10 kg | 1500 | ± 1500 |
| 5 kg | 750 | ± 750 |
| 2 kg | 300 | ± 300 |
| 1 kg | 150 | ±150 |
| 500 g | 75 | ± 75 |
| 200 g | 30 | ± 30 |
| 100 g | 15 | ±15 |
| 50g | 10 | ±10] |
10. Stamping
The Inspector's seals shall be stamped on the lead pellet within the loading hole (See Fig. 6).D-BULLION WEIGHTS (10 kg to 1 g)1. Denominations
Bullion weights shall have the following denominations:Gram series: 500, 200, 100, 50, 20,10, 5, 2 and 1.Kilogram series: 10, 5,2 and 1.2. Shape
Bullion weights shall be of the following two types:5.
) but shall bear indications, specified in paragraph 6 to indicate that they are bullion weights.3. Material
Weights shall be made or manufactured from brass, gun metal, bronze or the like.4. Method of manufacture
Weights shall be either cast, pressed or turned from rods, or made or manufactured by any other suitable method as may be applicable to the selected material.5. Loading holes
6. Markings
7. Dimensions
| Denomination | A | B | C | D | E | F | G |
| 1kg | 80 | 61.5 | 20 | 23 | 4.0 | 12 | 26.6 |
| 500g | 61 | 48.5 | 16 | 19 | 2.5 | 10 | 22.5 |
| 200g | 48 | 37.5 | 14 | 16 | 2.0 | 7 | 14.8 |
| 100 g | 37 | 28.5 | 12 | 14 | 2.0 | 6 | 12.7 |
| 50 g | 28 | 21.5 | 10 | 11 | 1.5 | 3 | 11.0 |
| 20g | 21 | 16.5 | 9 | 10 | 1.5 | 3 | 8.4 |
| 10g | 16 | 12.5 | ** | ** | 1.5 | ** | 6.9 |
| 5g | 12 | 9.5 | ** | ** | 1.0 | ** | 5.9 |
| 2g | 9 | 7.0 | ** | ** | 1.0 | ** | 4.4 |
| 1 g | 6.5 | ** | ** | ** | ** | ** | 3.6 |
8. Finish
The surface of the weights shall be polished, smooth and shall not show any porosity to the naked eye.9. Permissible error
The maximum permissible errors shall be as specified below:| Denomination | Permissible error | |
| Verification (mg) | Inspection (mg) | |
| 50 kg | 7500 | ± 7500 |
| 20 kg | 3000 | ± 3000 |
| 10 kg | 1500 | ± 1500 |
| 5 kg | 750 | ± 750 |
| 2 kg | 300 | ± 300 |
| 1 kg | 150 | ±150 |
| 500 g | 75 | ± 75 |
| 200 g | 30 | ± 30 |
| 100 g | 15 | ±15 |
| 50g | 10 | ±10] |
10. Stamping
1. Denominations
Sheet metal weights shall have the following denominations:-Milligram series: 500,200,100,50,20,10,5,2 and 1.2. Shape
| Denomination (mg) | Shape after bending along one of the sides |
| 5,50,500 | Equilateral triangle |
| 2,20,200 | Square |
| 1,10,100 | Regular hexagon |
3. Material
Sheet metal weights shall be made or manufactured from brass, stainless steel, aluminium nickel-silver or cupro-nickel sheets.4. Method of manufacture
Sheet metal weights shall be made or manufactured by pressing or by any other suitable process.5. Markings
| Denomination (mg) | A1 | A2 | A3 | B | H |
| 500 | 14.0 | - | - | 2.0 | 3.0 |
| 200 | .. | 12.0 | .. | 2.0 | 3.0 |
| 100 | .. | .. | 12.0 | 2.0 | 2.5 |
| 50 | 8.0 | .. | .. | 1.5 | 2.5 |
| 20 | .. | 7.0 | .. | 1.5 | 2.5 |
| 10 | .. | .. | 7.0 | 1.5 | 2.5 |
| 5 | 4.5 | .. | .. | 1.0 | 2.0 |
| 2 | .. | 4.0 | .. | 1.0 | 2.0 |
| 1 | .. | .. | 4.0 | 1.0 | 2.0 |
6. Dimensions
| Denomination | D | C | H |
| 500 mg | 15 | 2.0 | 3.0 |
| 200 mg | 13 | 2.0 | 3.0 |
| 100 mg | 11 | 2.0 | 2.5 |
| 50 mg | 9 | 1.5 | 2.5 |
| 20 mg | 8 | 1.5 | 2.5 |
| 10 mg | 7 | 1.5 | 2.5 |
| 5 mg | 6 | 1.0 | 2.0 |
| 2mg | 5 | 1.0 | 2.0 |
| 1mg | 4 | 1.0 | 2.0 |
7. Finish
The sheet metal weights shall be clearly sheared and free from burrs. The stamped markings on sheet metal weights shall be legible and deep enough to ensure indelibility but not so deep as to crack the sheet metal weights.8. Permissible error
The maximum permissible errors shall be as specified below:| Denomination (mg) | Maximum Permissible error | |||
| Verification (mg) | Inspection | |||
| Bullion (mg) Non-bullion (mg) | Bullion (mg) Non-bullion (mg) | |||
| 1 | 2 | 3 | 4 | 5 |
| 500 | 0.8 | 2.5 | ±0.8 | ±2.5 |
| 200 | 0.6 | 2.0 | ±0.6 | ±2.0 |
| 100 | 0.5 | 1.5 | ±0.5 | ±1.5 |
| 50 | 0.4 | 1.2 | ±0.4 | ±1.2 |
| 20 | 0.3 | 1.0 | ±0.3 | ±1.0 |
| 10 | 0.25 | 0.8 | ±0.25 | ±0.8 |
| 5 | 0.20 | 0.6 | ± 0.20 | ±0.6 |
| 2 | 0.20 | 0.6 | ± 0.20 | ±0.6 |
| 1 | 0.20 | 0.6 | ±0.20 | ±0.6 |
9. Stamping
Part II
CARAT WEIGHTS1. General
This Part deals with the requirements for carat weights intended for use in weighing pearls, diamonds and other precious stones.2. Denominations
The denominations of carat weights shall be as given below (the gram and milligram equivalents are shown against each for ready reference):| Denominations carat | Equivalent Equivalent g |
| 500 | 100 |
| 200 | 40 |
| 100 | 20 |
| 50 | 10 |
| 20 | 4 |
| 10 | 2 |
| 5 | 1 |
| Denomination carat | Equivalent mg |
| 2 | 400 |
| 1 | 200 |
| 0.5 | 100 |
| 0.2 | 40 |
| 0.1 | 20 |
| 0.05 | 10 |
| 0.02 | 4 |
| 0.01 | 2 |
| 0.005 | 1 |
3. Knob weights
| Denomination Carat | Verification mg | Inspection mg |
| 500 | 5.0 | ±5.0 |
| 200 | 3.0 | ±3.0 |
| 100 | 2.5 | ±25 |
| 50 | 2.0 | ±2.0 |
| 20 | 1.5 | ±1.5 |
| 10 | 1.2 | ±1.2 |
| 5 | 1.0 | ± 1.0 |
| Denominations carat | A* | C** | D | E | F | G | H |
| 500 | 12.0 | 0.4 | 4.0 | 10.0 | 6.0 | 32.0 | 14.2 |
| 200 | 10.0 | 0.4 | 3.0 | 8.5 | 5.0 | 23.0 | 10.8 |
| 100 | 8.0 | 0.4 | 2.5 | 7.0 | 4.0 | 19.0 | 7.9 |
| 50 | 6.0 | 0.3 | 2.0 | 5.5 | 3.0 | 15.0 | 6.4 |
| 20 | 5.0 | 0.3 | 2.0 | 4.0 | 2.0 | 11.0 | 4.6 |
| 10 | 4.0 | 0.3 | 1.5 | 3.0 | 1.5 | 9.0 | 3.5 |
| 5 | 3.0 | 0.2 | 1.5 | 2.5 | 1.5 | 7.0. | 2.9 |
4. Sheet metal weights
| Denomination carat | Verification mg | Inspection mg |
| 2 | 0.8 | ± 0.8 |
| 1 | 0.6 | ±0.6 |
| 0.5 | 0.5 | ±0.5 |
| 0.2 | 0.4 | ±0.4 |
| 0.1 | 0.3 | ±03 |
| 0.05 | 0.25 | ± 0.25 |
| 0.02 | 0.20 | ± 0.20 |
| 0.01 | 0.20 | ± 0.20 |
| 0.005 | 0.20 | ± 0.20 |
| Denomination carat | Size a mm |
| 2 | 12 |
| 1 | 10 |
| 0.5 | 9 |
| 0.2 | 8 |
| 0.1 | 7 |
| 0.05 | 6 |
| 0.02 | 5 |
| 0.01 | 4 |
| 0.005 | 3 |
5. Manufacture and finish
6. Marking
7. Packing
1. Scope.-These specifications shall apply to standard weights having a nominal value equal to or greater than 50 kg, used for testing (and adjusting, where appropriate) of high capacity weighing machines in accuracy class III (medium) and class III (ordinary), defined in the Metrological regulations for non-automatic weighing machines.
2. Nominal values.-The nominal value of the standard weight is 50 kg, or of the form k x 10" kg, where k is generally equal to 1, 2 or 5, and n is whole number equal to or greater than 2.
3. Shape.-The standard weights must have a relatively simple shape, with no sharp edges or corners. They shall not have any cavities liable to cause a rapid accumulation of dirt. If they are intended to run on a flat surface (or on rails), they must be equipped with roller tracks (or grooves) of limited area.
4. Basis of adjustment.-The standard weights must be adjusted taking the reference conditions applicable to the adjustment of standard weights as follows:
5. Adjusting cavity.-The standard weights must include one or more adjusting cavities. It must be possible to seal the closure of these cavities; the closures must be water-tight and airtight (e.g. by means of a joint). The volume of adjusting cavities must be at least equal to 5/100 of the volume of the standard weight. Furthermore, it is desirable that, after the initial adjustment, a volume of at least 1/100 of the volume of the standard weight remains empty.
6. Material.-Standard weights are in general made of grey cast iron. They may be made of one or more other materials, provided the provisions of paragraph 8 are observed. The material used must be of such hardness and strength that they withstand the loads and shocks liable to occur under normal conditions of use.
7. Surface condition.-The standard weights may be coated with materials suitable for providing protection against corrosion by rendering their surface impermeable. This coating must withstand shocks and atmospheric conditions. Zinc-plating is an example of a coating which meets with these specifications.
8. Metrological characteristics.-The maximum permissible error for the standard weights must not exceed 1 /3 of the maximum permissible error for the corresponding load considered, on the weighing machine under verification. The absolute error for various denominations of standard weights shall be as given in Annexure I. These maximum permissible errors for the standard weights must therefore be compatible with the number of scale divisions on the machines which they are intend to verify. Furthermore, the density of standard weights must be such that a variation of ± 10 per cent ambient air density, with respect to its reference value, does not produce a variation, in the result of weighing the standard weight in air, exceeding ¼ of its maximum permissible error. By way of application of these requirements, the following table gives examples of the relation amongst:
| Maximum number of scale divisions "n" on weighing machines (accuracy class III), capable of verification with the standard weights during verification | Maximum permissible positive or negative relative error on the standard weights | Minimum density kg/m3 |
| (1) | (2) | (3) |
| 1000 | 3.3/10000 | 1231 |
| 3000 | 1.7/10000 | 2087 |
| 5000 | 1.0/10000 | 3000 |
| 10000 | 0.5/10000 | 4364 |
9. Inscriptions and markings
Standard weights must carry their nominal value in numerals, followed by the symbol for the unit used and a verification mark.10. Adjustment and verification
Adjustment of the standard weights must be such as to comply with the maximum permissible errors given in this specification. In particular this may be achieved in the case of adjustment by the double substitution weighing technique (Gauss transposition method, or Borda substitution method), using as reference standards, weights having an error of less than 1/3 of the maximum permissible error for the weight to be adjusted, and as the comparator machine, a weighing machine for which the limit of repeatability error does not exceed 0.2 times of the maximum permissible error for the weight to be adjusted.Note.-Standard weights used for verification of a weighing machine with "n" scale divisions may be used for the re-verification of a weighing machine with "pn" scale divisions, where the maximum permissible error for this re-verification is "p" times (wherep has a value equal to or greater than 1), the maximum permissible error on verification.11. Dimensions
The Dimensions for 500 kg and 1000 kg denominations weights shall be as given in Annexure II.ANNEXURE IABSOLUTE ERRORS FOR STANDARD WEIGHTS| Nominal Value kg | Maximum permissible error for the standard weights | |||
| 3.3/10, 000 | 1.7/10,000 | 1/10,000 | 0.5/10,000 | |
| Corresponding absolute error (grams) | ||||
| 50 | 17 | 8.5 | 5 | 2.5 |
| 100 | 33 | 17 | 10 | 5 |
| 200 | 66 | 33 | 20 | 10 |
| 500 | 170 | 85 | 50 | 25 |
| 1000 | 330 | 170 | 100 | 50 |
| 2000 | 660 | 330 | 200 | 100 |
| 5000 | 1:700 | 850 | 500 | 250 |
| 1:000 | 3:000 | 5:000 | 10:000 | |
| Maximum number of scale divisions <_ n > on weighing machines (accuracy class III) capable of being verified (verification) with the standard weights (See note given at clause 10). |
| a | b | c | |
| 500kg | 273 | 100 | Æ100 |
| 1000kg | 504 | 120 | Æ140 |
VI
SPECIFICATIONS FOR MEASURES(See rule 12)Part I
LIQUID CAPACITY MEASURES1. General
This Part deals with two types of cylindrical liquid measures, namely, the dipping and the pouring types, and one type of conical measures.2. Denominations
The denominations of the different types of measures shall be under:-| Cylindrical measures | Conical measures | |
| Dipping type | Pouring type | |
| 1 litre | 2 litres | 20 litres |
| 500 ml | 1 litre | 10 litres |
| 200 ml | 500 ml | 5 litres |
| 100 ml | 200 ml | 2 litres |
| 20 ml | 100 ml | 1 litre |
| 20 ml | 50 ml | 500 ml |
| 20 ml | 200 ml | |
| 100 ml |
3. Shapes and dimensions
(a)The shape and dimensions of cylindrical measures (dipping and pouring types)shall be as shown in Figs. 12 and 13 and Table 11.TABLE 11NOMINAL DIMENSIONS OF CYLINDRICAL CAPACITY MEASURES| Denominations | D | H | B | G | |
| Max. | Min. | Min. | |||
| 2 litres | 120 | 180 | 360 | 250 | 1.60 |
| 1litre | 95 | 142 | 254 | 210 | 1.60 |
| 500 ml | 75 | 114 | 224 | 160 | 1.60 |
| 200 ml | 55 | 83 | 166 | 120 | 1.25 |
| 100 ml | 44 | 66 | 132 | 100 | 1.25 |
| 50 ml | 35 | 52 | 104 | 80 | 1.25 |
| 20 ml | 26 | 38 | 76 | 60 | 1.00 |
| Denominations | A | B | C | D | E | F | G Min | H | J | K | M |
| 20 litres | 97 | 388 | 388 | 208 | 194 | 390 | 1.00 | 35 | 86 | 29 | 30 |
| 10 litres | 77 | 308 | 307 | 174 | 154 | 309 | 1.00 | 30 | 75 | 26 | 25 |
| 5 litres | 61 | 244 | 245 | 147 | 122 | 247 | 0.80 | 25 | 65 | 24 | 20 |
| 2 litres | 45 | 180 | 180 | 118 | 90 | 182 | 0.80 | 20 | 56 | 22 | 16 |
| 1litre | 36 | 143 | 143 | 95 | 72 | 145 | 0.63 | 20 | 45 | 18 | 16 |
| 500 ml | 28 | 114 | 113 | 74 | 56 | 115 | 0.63 | 15 | 35 | 14 | 12 |
| 200 ml | 21 | 84 | 84 | 53 | 42 | 86 | 0.63 | 10 | 24 | 10 | 8 |
| 100 ml | 17 | 66 | 67 | 41 | 34 | 69 | 0.63 | 10 | 18 | 7 | 8 |
4. Material
5. Manufacture and finish
6. Permissible error
The maximum permissible errors shall be as specified:MAXIMUM PERMISSIBLE ERRORS (In ml)| Deno-mination | Verification in excess only | Inspection | ||||
| Cylindrical measures ml | Conical measures | Cylindrical measures | Conical measures | |||
| Excess | Deficiency ml | Excess | Deficiency ml | |||
| 201 | ... | 100 | Error same as in verification | ... | Error same as in verification | 50 |
| 101 | ... | 50 | ... | ... | 25 | |
| 51 | ... | 30 | ... | ... | 15 | |
| 21 | 30 | 15 | 15 | 7.5 | ||
| 11 | 20 | 10 | 10 | 5 | ||
| 500 ml | 15 | 8 | 7.5 | 4 | ||
| 200 ml | 8 | 4 | 5 | 2 | ||
| 100 ml | 5 | 3 | 2.5 | 1.5 | ||
| 50 m1 | 3 | ... | 1.5 | ... | ||
| 20 ml | 2 | ... | 1 |
7. Marking
8. Stamping
Part II
DISPENSING MEASURES1. General
This Part deals with two types of dispensing measures made of glass or transparent plastic materials, used for dispensing purposes. Conical dispensing measures of capacity 100 ml may also be used in the sale of liquor.2. Types and denominations
Dispensing measures shall be of the following types and denominations:-3. Materials
4. Definition of capacity
The capacity corresponding to any graduation marks is defined as the volume of water at 27°C, expressed in millilitres, required to fill the measure to that graduation mark at 27°C, the observer's eye being level with the front graduation marks and the lowest point of the water meniscus appearing to touch the top edge of that mark.5. Shape, construction, etc., of conical measures
| | 2 | 3 | 4 | 5 | 6 | 7 | |
| Ml | ml | ml | ml | ml | cm | cm |
| 200 | 50,100,120,140,160, 180,200 | 50,100,120,140,160,180,200 | 50,100,200 | 50 | 6.5±0.5 | 2.0 |
| 100 | Every 10 ml from 10 to 100 ml | 10,20,40,60,80,100 | 20, 60, 100 | 10 | 3.0±0.5 | 1.75 |
| 50(Tall) | Every 10 ml from 10 to 50 ml | 10,30,50 | 30,50 | 10 | 4.0±0.5 | 1.5 |
| 50(Squat) | Every 10 ml from 10 to 50 ml | 10,30,50 | 30,50 | 10 | 2.0±0.5 | 1.5 |
| 20 | Every 5 ml from 5 to 20 ml | 5,10,20 | 10,20 | 5 | 2.5±0.5 | 1.25 |
| 10 | Every ml from 2 to 10 ml | 2,4,6,8,10 | 2,6,10 | 2 | 2.5±0.5 | 1.0 |
| 5 | Every ml from 1 to 5 ml | 1,3,5 | 3,5 | 1 | 2.5±0.5 | 0.75 |
15E.
-20 ml,Fig. 15F-15 ml, Fig. 15G-5 ml| (1) | (2) | (3) |
| Ml | ml | ml |
| 200,180,160 | ± 3.0 | |
| 140,120,100 | ± 2.0 | |
| 90,80,70,60 | ±1.5 | |
| 50,40 | ± 1.0 | ± 1.00 |
| 30 | ±0.8 | ±1.00 |
| 20 | ±0.6 | ±0.80 |
| 15 | ±0.5 | - |
| 10,9 | ±0.4 | ±0.6 |
| 8,7,6 | ±0.3 | - |
| 5 | ± 0.25 | - |
| 4 | ±0.20 | - |
| 3 | ±0.16 | - |
| 2 | to 0.12 | - |
| 1 | ± 0.08 | - |
6. Shape construction, etc., of beaker measures
7. Marking
Each measure shall have permanently and legibly engraved or etched on its denomination in Indo-Arabic numerals, the abbreviations "ml" and "" being used to indicate millilitres. The manufacturer's name or trade mark shall be marked on theunderside of the base of each measure.Note.-The abbreviation "feyh " may be indicated in the regional script.TABLE 14GRADUATION AND DIMENSIONS OF BEAKER MEASURES| Deno-mination | Graduation at | Distance between lowest & highest graduation mark | Height of lowest graduation marks bottom of measuring surface | Diametre of top | Min Diametre of base | Overall height |
| (1) ml | (2) | (3) cm | (4) cm | (*5) cm | (*6) cm | (7) |
| 1000 | 200 to 1000 ml at each 100 ml; numbered back lines at 200, 600 and 1000 ml | 11+1 | 4±1 | 12 | 9 | 23 |
| 500 | 100 to 500 ml at each 50 ml; numbered at each 100 ml; unnumbered back lines at 100, 300 and 500 | 9 ± 0.5 | 3 ± 0.5 | 10 | 8 | 18 |
8. Stamping
The Inspector's seal shall be affixed after each verification, just above the uppermost graduation marks.BEAKER MEASURES OF METRIC SERIESFIGIRE 16A FIGURE 16BPart III
LIQUOR MEASURES1. General
This Part deals with the requirements for liquor measures of two types.2. Types
Liquor measures shall be of the following two types:3. Denoininations
The denominations of the types of liquor measures shall be as given below:-Hand operated: 100 ml, 60 ml and 30 ml.Automatic: 20 ml.4. Material
The body of the liquor measures shall be made from glass or brass sheet or stainless steel sheet. The minimum thickness of the sheet for liquor measures shall be 1.2 mm.5. Shapes and dimensions
The shapes and nominal dimensions of hand operated liquor measures and automatic liquor measures shall be as given in Figs. 17,18 and 19 respectively.SHAPE AND NOMINAL DIMENSIONS OF LIQUOR MEASURESFIGURE 17100. ml, 60 ml and 30 ml Capacity
ml and 30 ml Capacity SHAPE AND NOMINAL FIGURE 18 DIMENSIONS OF AUTOMATICLIQUOR MEASURE 30 ml CapacityFIGURE 196. Manufacture
7. Permissible error
The maximum permissible errors shall be as given below:| Denomination | Permissible error |
| 100 ml | ±3ml |
| 60 ml | ±2ml |
| 30 m1 | ± 1 ml |
8. Markings
9. Stamping
Inspector's seal shall be affixed after every verification just below the indication of thedenomination of the mark.Part IV
LENGTH MEASURES (NON-FLEXIBLE)1. General
This Part deals with the non-flexible type of length measures made or manufactured from metal or wood.2. Denominations
The denominations of the length measures shall be as follows:| Metallic measures | Wooden measures |
| 1m | 2m |
| 0.5m | 1m |
| 0.5 m |
3. Material, shape, etc., of metallic measures
| Denomination | Verification | Inspection | ||
| Excess | Deficiency | Excess | Deficiency | |
| 1m | 1.0 mm | 0.5 mm | 1.0 mm | 1.0mm |
| 0.5m | 0.5m | 0.25 mm | 0.5 mm | 0.5 mm |
4. Material, shape, etc., of wooden measures
| Denomination | Verification | Inspection | ||
| Excess | Deficiency | Excess | Deficiency | |
| 2 m | 4mm | 2 mm | 4mm | 4mm |
| 1 m | 2mm | 1 mm | 2 mm | 2mm |
| 0.5 mm | 1mm | 0.5 mm | 1mm | 1mm |
5. Manufacture and finish
6. Marking
Part V
FOLDING SCALES1. General
This Part deals with wooden folding scales.2. Denominations
The denominations of folding scales shall be 1 m and 0.5 m.3. Materials
4. Manufacture
5. Dimensions
The principal dimensions of the scale blanks shall be as follows:| Length of graduated part (m) | Width max. (mm) | Min.(mm) | Thickness(mm) . |
| 0.5 | 15.0 | 14.5 | 4±1 |
| 1 | 20.0 | 19.0 | 5±1 |
6. Graduations
5. mm marks 4 mm
1. mm marks 2.5 mm
7. Permissible error
The cumulative error for the entire graduated part shall not exceed ± 0.50 mm.Further, over any 10 cm length scale, the error shall not exceed ± 0.2 mm.8. Marking
9. Stamping
The Inspector's seal shall be affixed either on the metal strip at the ends or the central hinge as may be convenient.[PART VI] [ Substituted by G.S.R. 253(E), dated 5-4-2004 (w.e.f. 5-4-2004).]FABRIC OR PLASTIC TAPE MEASURE1. General
2. Classes of accuracy
Fabric or plastic tape measure shall be divided into three classes of accuracy, namely, Class I, Class II and Class III, in accordance with their accuracy.3. Nominal lengths
Fabrics or plastic tape measures shall be made in nominal lengths of 0.5 m,1 in, 1.5 m, 2 in, 3 in, 4 in, 5 in or multiples of 5 metres, provided that the maximum nominal length shall not exceed 100 metres.Note. The nominal length of a fabric or plastic tape measure is the distance at the reference temperature of 20°C between the initial and terminal graduation lines, when the tape measure is stretched, in the wet or dry condition, and without friction on a horizontal plane surface, under an extension of 20 newtons. The length so measured shall be equal, within the limits of maximum permissible errors, to the nominal length of the tape measure.4. Material
5. Manufacture
6. Graduations
1. cm, on measures of nominal length less than or equal to 21,
10. cm, on measures of nominal length more than 2 m, but less than 10 m,
20. cm, on measures of nominal length more than 10 m, but less than 50 m,
50. cm, on measures of nominal length equal to or more than 50 m.
7. Numbering
8. Maximum permissible error
9. Markings
10. Sealing
The stamp of verification shall be affixed on the metal, plastic, leather or other strip provided at the beginning of the tape measure.[PART VII] [ Substituted by G.S.R. 253(E), dated 5-4-2004 (w.e.f. 5-4-2004).]STEEL TAPE MEASURES1. General
This Part deals with steel tape measures which are used for measurements where the use of rigid length measures is not convenient or practicable.2. Classes of accuracy
Steel tape measures shall be divided into three classes, namely, Class I, Class II and Class III, in accordance with their accuracy.3. Nominal lengths
The tape measures shall be made in nominal lengths of 0.5 m, 1 m, 1.5 m, 2 m, 3 m, 4 m, 5 m or multiples of 5 m, provided that the maximum nominal length not to exceed 200 m.Note.-The nominal length of a steel tape measure is the distance at the reference temperature of ± 20°C, between the initial and terminal graduation lines, when the tape measure is stretched, without friction, on a horizontal plane surface, under a tension of 50 newtons. The length so measured shall be equal, within the limits of maximum permissible errors, to the nominal length of the tape measures.4. Materials
5. Manufacture
6. Graduations
1. cm, on measures of nominal length less than or equal to 2 m,
10. cm, on measures of nominal length more than 2 m but less than 10 m,
20. cm, on measures of nominal length more than 10 m, but less than 50 m,
50. cm, on measures of nominal length equal to or more than 50 m.
(iii)Graduation lines shall be reasonably straight, perpendicular to the axis of the tape measure, and of uniform thickness throughout their length.(iv)Graduation lines shall be so made that they form a clear and distinct scale and that their thickness does not cause any inaccuracy of reading.(v)[***](b)Tape measures above 5 m to 200 m shall be graduated only on one side. Tape measures of 0.5 m to 5 m may be graduated on both sides. (Only metric scale).(c)The graduated lines, numbers and other markings shall be either in relief, engraved, typographically printed or made in any other suitable manner.(d)The zero of the scale may be located at the outer or inner edge of the ring or other device, or may also be located on the tape measure itself, at a length equal to or greater than:(i)50 mm from the outer end of the ring or other device, in the case of tare measures of nominal length 0.5 m to 5 m; and(ii)100 mm from the outer end of the ring or other device, in the case of tape measures of nominal lengths above 5 m.(e)Tape measure of denominations 0.5 m to 5 m may be graduated throughout at every millimetre, every 5 millimetre or every 10 millimetre:(i)The graduation lines at every 10 mm shall be marked in such a manner that there is no confusion between the 100 mm graduation lines and the millimetre or 5 mm graduation lines.(ii)In the case of tape measures graduated at every 5 mm or 10 mm, not less than the first 100 mm shall be sub-divided into millimetre.(f)In the case of tape measures of nominal length above 5 m, every graduation line at 50 mm shall have the same length as the graduation line at 10 mm but may have an arrow at its end. This requirement shall not apply to tape measures graduated at every millimetre.(g)The thickness of the graduation lines shall not exceed the folloving limits:7. Numbering
10. mm, for tape measure of nominal length 0.5 to 5 m, 100 mm for tape measure of nominal length exceeding 5 m.
8. Maximum permissible error
9. Markings
10. Sealing
The stamp of verification shall be affixed on the metal, plastic, leather or other strip provided at the beginning of the tape measure.]Part VIII
SURVEYING CHAINS1. General
This Part deals with link type surveying chains of 20 m and 30 m lengths for land measurement.2. Definitions
3. Material
The different components of the chains shall be made from the materials mentioned against each.| Components | Material |
| Handle | Brass Castings |
| Eye Bolt Collar | Brass suitable for free cutting and high speed machine work machine work |
| Ring, | |
| Link, Small | |
| Link, Large | Galvanised mild steel wire 4 mm |
| Link, Connecting | |
| Tally | Brass sheet or galvanized sheet |
| Indicating ring | Brass wire |
4. Constructional details
5. Permissible error
20. metre chains ± 5 mm
30. metre chains ± 8 mm
6. Marking
7. Provision for stamping
A metal label or disc shall be permanently attached to the handle at the beginning of each chain for the verification of stamp.Part IX
TAPES FOR USE IN MEASUREMENT OF OIL QUANTITIES1. General
This Part covers the requirements of tape with the dip weight attached to it and to beused in gauging petroleum, petroleum products and other oils.2. Definitions
A dip tape shall mean essentially a graduated steel tape in one continuous length usedin conjunction with a dip weight.3. Denominations
The tape shall be of the denominations 5, 10,15, 20, 25 and 50 metres.4. Material
5. Dip tape
| Unit of graduation | Approximate height of graduation mm |
| Millimetre | 4 |
| Five millimeters | 6 |
| Centimetre | 8 |
| Decimetre | Full width of the tape |
| Metre | Full width of the tape |
6. Dip weights
| Unit of graduation | Approximate height of graduation mm |
| Millimetre | 4 |
| Five millimeters | 6 |
| Centimetre | 8 |
| Decimetre | Full width of the tape |
| Metre | Full width of the tape |
7. Permissible error
The error in the length of the tape supported on horizontal surface with a tension of 50 newtons shall not exceed the following limits:8. Marking
VII
HEADING A(See rule 13)SPECIFICATIONS FOR WEIGHING INSTRUMENTSPARTIGENERAL REQUIREMENTS1. Category
Weighing instruments of the following categories are included in this Schedule:-2. Constructions
3. Marking
4. Sealing
All weighing instruments shall be provided by the manufacturers with a plug or stud of soft metal to receive the stamp or seal of the verification authority. Such plug or stud shall be provided in a conspicuous part of the instrument and shall be made in such a manner as to prevent its removal without obliterating the seal.5. Tests
Part II
BEAM SCALES[***]Part III
COUNTER MACHINES[***]Part IV
STEELYARDS1. Definition
A steelyard means an unequal armed balance.2. Capacities
Steelyards may be of the following capacities:5. kg, 10 kg, 20 kg, 50 kg, 100 kg, 200 kg, 300 kg, 500 kg, 1000 kg.
3. Design and construction
4. Tests
| Verification | Inspection | |||
| Capacity | Sensitiveness when fully loaded | Maximum permissible error, in excess or deficiency, when fully loaded | Sensitiveness when fully loaded | Maximum permissible error in excess or deficiency, when fully loaded |
| 1 | 2 | 3 | 4 | 5 |
| 5 kg | 2.5 g | 3.8 g | 7.5 g | 7 g |
| 10 kg | 5g | 7.5g | 15g | 15g |
| 20 kg | 10g | 15g | 30g | 30g |
| 50 kg | 25g | 50g | 75g | 1008 |
| 100 kg | 40 g | 80 g | 120 g | 160 g |
| 200 kg | 80 g | 160 g | 240 g | 320 g |
| 300 kg | 120 g | 240 g | 360 g | 480 g |
| 500 kg | 200 g | 400 g | 600 g | 800 g |
| 1000 kg | 400 g | 800 g | 1200 g | 1600 g |
5. Sealing
Each instrument shall be provided with a plug or stud of soft metal on the front face of the shoulder of the steelyard to receive the stamp or seal of the verification authority. Such a plug or stud shall be made irremovable by undercutting or by some other suitable method.Part V
PLATFORM WEIGHING MACHINES1. Definition
2. Capacities
Platform weighing machines may be of the following capacities:10. kg, 20 kg, 50 kg, 100 kg, 250 kg, 300 kg, 500 kg, 1000 kg, 2000 kg, 3000 kg and 5000 kg.
Explanation I.-While arriving at the capacity of the machine the maximum graduation shown on the steelyard in the case of "loose weight" type machines and on the minor bar in the case of "no loose weight" type machines shall not be taken into account.Explanation II.-The capacity of the machine shall include the capacity of graduated tare bar or bars wherever provided.g.PLATFORM WEIGHING MACHINE FIGURE 44Explanation III.-When tare bars are used and are not graduated except with a zero mark they shall not be taken into account when calculating the capacity of the machines.Ungraduated tare bars shall be marked with zero.3. General requirements
| Range of balancing arrangement | ||
| Capacity | Max.0.5 percentage of capacity | Min.0.1 per cent capacity of each way |
| 10 kg | 50 kg | 10g |
| 20 kg | 100g | 20g |
| 50 kg | 250g | 50g |
| 100 kg | 500 g | 100 g |
| 200 kg | 1.0 kg | 200g |
| 250 kg | 1.25 kg | 250 g |
| 300 kg | 1.5 kg | 300g |
| 500 kg | 2.5 kg | 500 g |
| 1000 kg | 5.0 kg | 1.0 kg |
| 1500 kg | 7.5 kg | 1.5 kg |
| 2000 kg | 10.0 kg | 2.0 kg |
| 3000 kg | 15.0 kg | 3.0 kg |
| 5000 kg | 25.0 kg | 5.0 kg |
4. Tests and test requirements
| Verification | Inspection | |||||
| Capacity | Sensitiveness when fully loaded | Maximum permissible error in excess when fully loaded | Sensitiveness when fully loaded | Maximum permissible error in excess or deficiency when fully loaded | ||
| Non-dial type machines | Platform machines fitted with dials | Non-dial type machines | Platform machines fitted with dials | |||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| 10 kg | 2 g | 4 | A weight corresponding to one half the interval between consecutive minimum graduations | 6 | 8 | A weight corresponding to the interval between consecutive minimum graduations |
| 20 kg | 4 g | 8 g | 12 g | 16 g | ||
| 50 kg | 10 g | 20 g | 30 g | 40 g | ||
| 100 kg | 20 g | 40 g | 60 g | 80 g | ||
| 150 kg | 30 g | 60 g | 90 g | 120 g | ||
| 200 kg | 40 g | 80 g | 120 g | 160 g | ||
| 250 kg | 50 g | 100 g | 150 g | 200 g | ||
| 300 kg | 60 g | 120 g | 180 g | 240 g | ||
| 500 kg | 100 g | 200 g | 300 g | 400 g | ||
| 1000 kg | 125 g | 250 g | 375 g | 500 g | ||
| 1500 kg | 200 g | 400 g | 600 g | 800 g | ||
| 2000 kg | 250 g | 500 g | 750 g | 1000 g | ||
| 3000 kg | 300 g | 1000 g | 900 g | 2000 g | ||
| 5000 kg | 500 g | 1500 g | 1500 g | 3000 g |
5. Sealing
Part VI
SPRING BALANCES1. General
This Part deals with the requirements for spring balances of hanging and pan above the balance types having capacity of 1 to 500 kg.2. Definitions
3. Capacities
The capacities and permissible errors of indication for spring balance shall be as specified in Table 28.TABLE 28MAXIMUM ERROR FOR SPRING BALANCES[Clauses 3 and 4(g)(i)]| Capacity | Maximum weight corresponding to interval between consecutive graduation marks | Maximum permissible error in excess or deficiency, on verification | Remarks |
| 1 kg | 5 | A weight corresponding to half the smallest division | While fixing the diameter of effective circle or dial of one revolution of blank space of minimum 15 mm at the end of graduations shall be provided. The minimum blanks space requirement shall not apply in the case of multi-revolution spring balances |
| 2 kg | 20 g | ||
| 5 kg | 20 g | ||
| 10 kg | 50 g | ||
| 15 kg | 50 g | ||
| 20 kg | 100 g | ||
| 30 kg | 100 g | ||
| 50 kg | 200 g | ||
| 100 kg | 500 g | ||
| 150 kg | 1.0 g | ||
| 200 kg | 1.0 g | ||
| 200 kg | 1.0 g | ||
| 300 kg | 1.0 g | ||
| 500 kg | 2.0 g |
4. General requirements
5. Tests
6. Sealing
Spring balances shall be fitted with a soft plug or stud to receive the stamp or seal of the verification authority and this plug shall pass through the dial or frame. The plug or stud shall be so supported as to allow no risk of "injury" to the instrument.Part VII
WEIGHBRIDGES1. Definition
A weighbridge shall mean a weighing instrument constructed with compound levers, with the indicator system carried on foundations separate from the lever system to weigh loads of capacities 1000 kg (one tonne) and over.2. Capacities
Weighbridges maybe of the following capacities:It, 2t, 3t, 5t,10t,15t, 20t, 25t, 30t, 40t, 50t, 60t, 80t, 100t, 150t, 200t, 250t, 300t, 400t.Explanation IWhile arriving at the capacity of the machine the maximum graduation shown on the steelyard in the case of "loose weight" type machines and on the minor bar in the case of 'no-loose weight' type machines shall not be taken into account.Explanation IIThe capacity of the machine shall include the capacity of graduated tare bar or bars wherever provided.Explanation IIIWhen tare bars are used and are not graduated except with a zero mark, they shall not he taken into account when calculating the capacity of the machines.Ungraduated tare bars shall be marked with zero.3. General requirements
4. Tests and test requirements
| Capacity | Range of balancing arrangement | |
| Maximum 0.5 percent of capacity | Minimum 0.1 percent of capacity each way | |
| 1 | 2 | 3 |
| kg | kg | |
| It | 5 | 1.0 |
| 2t | 10 | 2.0 |
| 3t | 15 | 3.0 |
| 5t | 25 | 5.0 |
| 10t | 50 | 10.0 |
| 15t | 75 | 15.0 |
| 20t | 100 | 20.0 |
| 25t | 125 | 25.0 |
| 30t | 150 | 30.0 |
| 40t | 200 | 40.0 |
| 50t | 250 | 50:0 |
| 60t | 300 | 60.0 |
| 80t | 400 | 80.0 |
| 100t | 500 | 100.0 |
| 150t | 750 | 150.0 |
| 200t | 1000 | 200.0 |
| 250t | 1250 | 250.0 |
| 300t | 1500 | 300.0 |
| 400t | 2000 | 400.0 |
| Capacity of machine | Verification | Inspection | ||||
| Sensitiveness when fully loaded | Maximum permissible error in excess or deficiency when fully loaded | Sensitiveness when fully loaded | Maximum permissible error in excess or deficiency when fully loaded | |||
| Non-dial type machines | Platform machines fitted with dials | Non-dial type machines | Platform machines fitted with dials | |||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| kg | kg | A weight corresponding to one half of the interval between consecutive graduations | kg | kg | A weight corresponding g to the interval between consecutive graduations | |
| 1 | 1.0 | 1.2 | 3.0 | 2.4 | ||
| 2 | 1.5 | 1.4 | 4.5 | 2.8 | ||
| 3 | 1.5 | 1.6 | 4.5 | 4.0 | ||
| 5 | 1.5 | 2.0 | 4.5 | 4.0 | ||
| 10 | 2.0 | 3.0 | 6.0 | 6.0 | ||
| 15 | 2.5 | 4.0 | 7.5 | 8.0 | ||
| 20 | 3.0 | 5.0 | 9.0 | 10.0 | ||
| 25 | 3.5 | 6.0 | 10.5 | 12.0 | ||
| 30 | 4.0 | 7.0 | 12.0 | 14.0 | ||
| 40 | 5.0 | 7.0 | 15.0 | 14.0 | ||
| 50 | 5.5 | 8.0 | 16.5 | 16.0 | ||
| 60 | 5.5 | 8.5 | 16.5 | 17.0 | ||
| 80 | 6.0 | 10.0 | 18.0 | 20.0 | ||
| 100 | 6.5 | 11.5 | 19.5 | 23.0 | ||
| 150 | 8.0 | 15.0 | 24.0 | 30.0 | ||
| 200 | 9.0 | 19.0 | 27.0 | 38.0 | ||
| 250 | 12.0 | 25.0 | 36.0 | 50.0 | ||
| 300 | 15.0 | 30.0 | 45.0 | 60.0 | ||
| 400 | 20.0 | 40.0 | 60.0 | 80.0 |
5. Identification of parts
Detachable parts which may affect the accuracy of the weighbridge shall be indeliblynumbered or marked so as to facilitate identification.6. Sealing
Part VIII
CRANE WEIGHING MACHINES1. Definition
A crane weighing machine is a weighing instrument specially constructed, for suspension from the hook of a crane and fitted with a hook for lifting the load.Note.-A lever type machine with open steelyard is illustrated in Fig. 48. Fig. 49illustrates a dial type machine.2. Capacities
Crane weighing machines may be of the following capacities:500. kg, it, 2t, 3t, 5t,10t,15t, 20t, 30t, 50t, 100t, 200t.
3. General requirements
4. Tests.
5. Sealing
Crane machines, shall be fitted with an irremovable plug in a conspicuous part, either on the steelyard or on the dial, to receive the seal of the verification authority.TABLE 31LIMITS FOR SENSITIVENESS AND ERROR FOR CRANEWEIGHING MACHINES STEELYARD TYPE| Capacity | Verification | Inspection | ||
| Sensitiveness when fully loaded | Maximum permissible error in excess or deficiency when fully loaded | Sensitiveness when fully loaded | Maximum permissible error in excess or deficiency when fully loaded | |
| 1 | 2 | 3 | 4 | 5 |
| 500 kg | 500g | 1.0 kg | 1.5 kg | 2.0 kg |
| 1t | 1.0kg | 2.0 kg | 3.0 kg | 4.0 kg |
| 2t | 1.5 kg | 2.0 kg | 4.5 kg | 4.0 kg |
| 3t | 1.5 kg | 1.6 kg | 4.5 kg | 4.0 kg |
| 5t | 2.5 kg | 2.0 kg | 4.5 kg | 4.0 kg |
| 10t | 2.5 kg | 3.0 kg | 6.0 kg | 6.0 kg |
| 15t | 3.0 kg | 4.0 kg | 7.5 kg | 8.0 kg |
| 20t | 3.0 kg | 5.0 kg | 9.0 kg | 10.0 kg |
| 30t | 4.0 kg | 7.0 kg | 12.0 kg | 14.0 kg |
| 50t | 5.5 kg | 8.0 kg | 16.5 kg | 16.0 kg |
| 100t | 6.5 kg | 11.5 kg | 19.5 kg | 23.0 kg |
| 200t | 9.0 kg | 19.0 kg | 27.0 kg | 28.0 kg |
| Capacity | Maximum weight corresponding to interval between successive graduations | Maximum permissible error in excess or deficiency when full loaded | |
| Verification | Inspection | ||
| 500 kg | 5 | A weight corresponding to half the interval between successive graduations | A weight corresponding to the interval between successive graduations |
| 1 kg | 5 kg | ||
| 2t | 5 kg | ||
| 3t | 10 kg | ||
| 5t | 20 kg | ||
| 10t | 50 kg | ||
| 15t | 50 kg | ||
| 20t | 100 kg | ||
| 30t | 100 kg | ||
| 50t | 200 kg | ||
| 100t | 500 kg | ||
| 200t | 500 kg |
Part IX – AUTOMATIC WEIGHING MACHINES
[***]Part X
SELF-INDICATING AND SEMI-SELF INDICATING COUNTERTYPE WEIGHING MACHINES1. Definition
2. Capacities
The self-indicating or semi self-indicating machines may be of the capacities shown in Table 34.3. General requirements
4. Tests
5. Sealing
| Capacity | Maximum value of the minor graduations | Maximum permissible error at any load | |
| Verification | Inspection | ||
| (A) Sefl-indicating machines | |||
| 100 kg | 200 g | A weight equal to one half of the minor graduation | A weight equal to one minor graduation |
| 50 kg | 100 g | ||
| 30 kg | 100 g | ||
| 20 kg | 100 g | ||
| 10 kg | 50 g | ||
| 5 kg | 20 g | ||
| 3 kg | 10 g | ||
| 2 kg | 10 g | ||
| 1 kg | 10 g | ||
| 500 g | 5 g | ||
| 200 g | 2 g | ||
| 100 g | 1 g | ||
| (B) Semi self-indicating machines | |||
| 100 kg | 100 g | A weight equal to one half of minor graduation | A weight equal to one minor graduation |
| 50 kg | 50 g | ||
| 30 kg | 20 g | ||
| 20 kg | 20 g | ||
| 10 kg | 10 g | ||
| 5 kg | 10 g | ||
| 3 kg | 10 g | ||
| 2 kg | 10 g | ||
| 1 kg | 10 g | ||
| 500 g | 5 g | ||
| 200 g | 2 g | ||
| 100 g | 1 g |
Part XI
PERSON WEIGHING MACHINES1. Definition
2. Capacity
The person weighing machine shall have capacity not less than 120 kg capacity.3. General requirements
5. Tests
6. Sealing
The person weighing machine shall be fitted with an unremovable plug in its conspicuous part, to receive the seal of the verification authority.TABLE 35MAXIMUM PERMISSIBLE ERROR AND SENSITIVENESS FOR PERSONWEIGHING MACHINES| Type of machine | Sensitiveness when full loaded | Maximum permissible error plus or minus at any load up to full load | ||
| Verification | Inspection | |||
| 1. | Steelyard | 25 g | 50 g | 100 g |
| 2. | Dial type | - | 250 g | 500 g |
| 3. | Ticket issuing type | - | 500 g | 1 kg |
Part XII
TOTALISING WEIGHING MACHINES1. Definitions
2. General requirements
3. Test for accuracy
4. Marking and identification of parts
Part XIII
BABY WEIGHING MACHINE1. Definition
2. Capacity
3. General requirements
| | Minimum dimensions (mm) | |
| Length | 550 |
| Width | 300 |
| Depth Basin type | 100 |
| Through type | 125 |
| |- | | |
4. Tests
| Capacity | Sensitiveness when full loaded | Maximum permissible error in excess or deficiency when fully load | |
| Verification | Inspection | ||
| kg | g | g | G |
| 10 | 7.0 | 10.5 | 21 |
| 15 | 8.0 | 12.0 | 24 |
| 20 | 9.0 | 13.5 | 27 |
5. Sealing
Each machine shall be provided with a plug or stud of soft metal on a conspicuous part of the beam or the body to receive the stamp or seal of the verification authority. Such a plug or stud shall be made irremovable by undercutting it or by some other suitable method.Part XIV
WHEEL WEIGHERS1. General
This Part deals with the requirements for steelyard type and dial type wheel weighers of capacities 1, 3, 5, 10 and 15 tonnes. The steelyard type wheel weighers may be provided with proportional weights and/ or sliding weights.2. General requirements
3. Tests and test methods
| Capacity | Sensitiveness when fully loaded | Verification maximum permissible error, plus or minus, at full load | Sensitiveness when fully loaded | Inspection maximum permissible error, plus or minus, at full load | ||
| For steel type yard machines | For dial type machines | For steel yard type machines | For dial type machines | |||
| Tonne | kg | kg | kg | kg | kg | |
| 1 | 1 | 2 | A weight corresponding to one-half the interval between consecutive graduations | 3 | 4 | A weight corresponding to the interval between consecutive graduations |
| 3 | 2 | 4 | 6 | 8 | ||
| 5 | 3 | 6 | 19 | 20 | ||
| 10 | 5 | 10 | 15 | 20 | ||
| 15 | 5 | 10 | 15 | 20 |
5. Identification of parts
6. Sealing
Part I
TERMINOLOGY1. General definitions
2. Construction of an instrument
In this specification the term "device" is used for any means by which a specific function is performed, irrespective of the physical realisation, e.g., by a mechanism or a key initiating an operation; the device may be a small part or a major portion of an instrument.Part of – the instrument intended to receive the load.
Part of – the instrument for transmitting the force produced by the load acting on the load receptor, to the load-measuring device.
Part of – the instrument for measuring the mass of the load by means of an equilibrium device for balancing the force coming from the load transmitting device, and an indicating or printing device.
Part of – an instrument which performs a specific function, can be examined separately and is subject to specified partial error limits.
Part of – the load measuring device on which the direct reading of the result is obtained.
(i)Indicating componentComponent indicating the equilibrium and /or the result on an instrument with one position of equilibrium it indicate only the equilibrium (so-called zero).On an instrument with several positions of equilibrium it indicates both the equilibrium and the result. On an electronic instrument, this is the display.(ii)Scale markA line or other mark on an indicating component corresponding to a specified value of mass.(iii)Scale baseAn imaginary line though the centres of all the shortest scale marks.3. Metrological characteristics of an instrument
4. Metrological properties of an instrument
5. Indications and errors
6. Influence and reference conditions
7. Performance test
A test to verify whether the equipment under test (EUT) is capable of performing its intended functions.Part II
NON-AUTOMATIC WEIGHING INSTRUMENTS1. Scope
This specification specifies the metrological and technical requirements for non-automatic weighing instruments and will not be applicable to the following non-graduatedinstruments:2. Principles involved
3. Metrological requirements
| Type of instrument | Verification scale interval |
| Graduated, without auxiliary indicating device Graduated, with auxiliary indicating deviceNon-graduated | E=de is chosen by the manufacturer according to requirement in sub-paragraph (3) and clause (iii) of sub-paragraph(5) of this paragraph.e is chosen by the manufacture according to sub-paragraph (3) of this paragraph |
1x.
10k.
,2x10k,5x10kk being a positive or negative whole number or equal to zero.(ii)The verification scale interval for different types of instruments shall be as given in Table 39.TABLE 39| Type of instrument | Verification scale interval |
| Graduated, without auxiliary indicating device Graduated, with auxiliary indicating deviceNon-graduated | E=de is chosen by the manufacturer according to requirement in sub-paragraph (3) and clause (iii) of sub-paragraph(5) of this paragraph.e is chosen by the manufacture according to sub-paragraph (3) of this paragraph |
| Accuracy class | Verification scale intervale | Number of verification scale intervals n=Max/e | Minimum capacity | |
| Minimum | Maximum | |||
| Special I | 0.001 g≤e | 50 000* | - | 100e |
| High II | 0.001 g≤e≤0.05 g | 100 | 100000 | 20e |
| 0.1 g≤e | 5000 | 100000 | 50e | |
| Medium III | 0.1 g≤e≤2 g | 100 | 10000 | 20e |
| 5 g≤e | 500 | 10000 | 20e | |
| Ordinary III | 5 g≤e | 100 | 1000 | 10e |
| Class | I | II | III | IV |
| Maxi/ei+1 | ≤50000 | ≤5000 | ≤500 | ≤50 |
| d = | 0.1g | 0.2 g | 0.5 g |
| e= | 1g | 1g | 1g |
| Maximum permissible errors on verification/re-verification | For loads m expressed in verification scale intervalse | |||
| Class I | Class II | Class III | Class III | |
| ±0.5e | Min≤m≤50000 | Min≤m≤5000 | Min≤m≤500 | Min≤m≤50 |
| ±1e | 50000<m≤200000 | 5000<m≤20000 | 500<m≤2000 | 50<m≤200 |
| ±1.5e | 200000<m | 20000<m≤100000 | 2000<m≤10000 | 200<m≤1000 |
4. Technical requirements for a self or semi-self-indicating instruments:
1. mm for indicating devices;
5. Requirements for electronic instruments
In addition to paragraphs 3 and 4, an electronic instrument shall comply with the following requirements.| Tests | Characteristic under test |
| Static temperature | Influence factor |
| Damp heat, steady state | Influence factor |
| Power voltage variations | Influence factor |
| Short time power reductions | Disturbance |
| Bursts(transients) | Disturbance |
| Electrostatic discharge | Disturbance |
| Electromagnetic susceptibility | Disturbance |
6. Technical requirements for a non-self indicating instrument
A non-self-indicating instrument shall comply, as far as applicable, with paragraphs 3and 4.1. mm for an instrument of Class I or II
2. mm for an instrument of Class III or IV with Max ≤30 kg
5. mm for an instrument of Class III or IV with Max ≤ 30 kg
The sensitivity tests shall be carried out by placing extra loads with a slight impact in order to eliminate the effects of discrimination threshold.25. mm for maximum capacities less than or equal to 30 kg.
20. mm for maximum capacities exceeding 30 kg.
(b)GraduationThe graduation shall extend from zero to the maximum capacity.(c)Zero settingIf an instrument of class III or IV is provided with a zero-setting device, this shall be a captive screw or nut arrangement with a maximum effect of 4 verification scale intervals per revolution.7. Marking of an instrument
| For a multi-interval instrument | For an instrument with more than one weighing range (W1,W2) | For an instrument with weighing ranges in different classes | ||
| W1 | W2 | W1 | W2 | |
| II | III | |||
| Max 2/5/15kg | Max20kg | 100kg | Max 1000g | 5000g |
| Min20g | Min 200g | 1kg | Min 5g | 40g |
| e=1/2/5g | e=10g | 50g | e=0.1g | 2g |
| d=0.02g | 2g |
8. Metrological control
9. Test procedure during verification and inspection
1. General requirements for electronic instruments under test (EUT)
Energise the EUT for a time period equal to or greater than the warmup time specified by the manufacturer and maintain the EUT energised for the duration of the test.Adjust the EUT as closely as practicable to zero prior to each test, and do not re-adjust it at any time during the test, except to reset it if a significant fault has been indicated. The deviation of the no-load indication due to any test condition shall be recorded, and any load indication shall be corrected accordingly to obtain the weighing result.The handling of the instrument shall be such that no condensation of water occurs on the instrument.2. Performance tests for influence factors
3. Power voltage variations
Performance tests for disturbances| Test severity | Reductions | 100% | 50% |
| Number of half cycles | 1 | 2 |
| Frequency range | 26-1000 | MHz |
| Field strength | 3 | V/m |
| Modulation | 80%AM, 1 kHz sine wave |
4. Span stability test
(Not applicable to class I instruments)Test procedure in brief: The test consists in observing the variations of the error of the EUT under sufficiently constant ambient conditions (reasonably constant conditions in a normal laboratory environment) at various intervals before, during and after the EUT has been subjected to performance tests.The performance test shall include the temperature test and if applicable, the damp heat test; they shall not include any endurance test; other performance test in this Annexure and inparagraph 9 shall be performed.The EUT shall be disconnected from the mains power supply, or battery supply where fitted, two times for at least 8 hours during the period of the test. The number of disconnections may be increased if the manufacturer specified so or at the discretion of theapproval authority in the absence of any such specification.For the conduct of this test the manufacturer's operating instructions shall be considered.The EUT shall be stabilised at sufficiently constant, ambient conditions after switch-on for at least 5 hours, but at least 16 hours after the temperature and damp heat test have been performed.Test duration: 28 days or the period necessary for the performance tests to be carried out, whichever is shorter.Time between measurements: Between 1/2 and 10 days.Test load: Near Max: The same test weights shall be used throughout this test.Number of measurement: At least 8.Test sequence: Stabilize all factors at sufficiently constant ambient conditions.Adjust the EUT as close to zero as possible.Automatic zero-tracking shall be made inoperative and automatic built in span adjustment device shall be made operative.Apply the test weight(s) and determined the error.At the first measurement immediately repeat zeroing and loading four times todetermine the average value of the error. For the next measurements perform only oneunless either the result is outside the specified tolerance or the range of the five readings ofthe initial measurements is more than 0.1e.Record the following data:1. Category
Weighing instruments of the following categories are included in this Part:2. Constructions
3. Marking
4. Sealing
All weighing instruments shall be provided by the manufacturers with a plug or stud of soft metal to receive the stamp or seal of the verification authority. Such plug or stud shall be provided in a conspicuous part of the instrument and shall be made in such a manner as to prevent its removal without obliterating the seal.[PART IV] [Inserted by Notification No. G.S.R. 323 (E), dated 6.5.1999 (w.e.f. 1.7.1987)]BEAM SCALES1. Definitions
1. Sensitivity figures shall be determined only for those beam scales which have a pointer with sector plate. For other beam scales the sensitiveness test shall apply.
2. All class "A" beam scales shall be provided with a pointer with sector plate or the scale.
2. Classes and capacities
| Class of Scale | Use |
| A | *Commercial assay and in "Dharam Kanta" for verifying the weights of bullion and precious stones. |
| B | Precious stones, jewels, pearls, bullion precious metals, saffron and similar expensive commodities, chemists and druggists preparations, perfumery, etc. |
| C | Base metals and commodities such as cereals, tea, coffee, tobacco, jute, cotton, dry fruits, spices, oil seeds, etc. |
| D | Weighment of cheaper commodities such as scrap iron, fuel, wood, charcoal, vegetables, etc. |
3. Materials
4. Construction
5. Tests
6. Sealing
All beam scales shall be provided by the manufacturer with a plug/plugs or stud/ studs of soft metal to receive the stamp or seal of the verification authority. Such plug/plugs or stud / studs shall be provided in a conspicuous position and shall be made in such amanner as to prevent its removal without obliterating the seal/seals.TABLE 43-BLIMITS FOR SENSITIVITY FIGURE AND GREATEST ERROR FOR BEAM SCALESClass "A"| Capacity | Verification | Inspection | ||
| Sensitivity figure per division of scale at no load and at full load | Greatest error allowed when fully loaded | Sensitivity figure per division of scale at no load and at full load | Greatest error allowed when fully loaded | |
| 1 | 2 | 3 | 4 | 5 |
| mg | mg | mg | mg | |
| 2g | 0.02 | 0.04 | 0.06 | 0.08 |
| 5g | 0.05 | 0.10 | 0.15 | 0.20 |
| 10g | 0.10 | 0.20 | 0.30 | 0.40 |
| 20g | 0.20 | 0.40 | 0.60 | 0.80 |
| 50g | 0.50 | 1 | 1.5 | 2 |
| 100g | 1 | 2 | 3 | 4 |
| 200g | 2 | 4 | 6 | 8 |
| 500g | 5 | 10 | 15 | 20 |
| 1g | 10 | 20 | 30 | 40 |
| 2g | 20 | 40 | 60 | 80 |
| 5g | 30 | 60 | 90 | 120 |
| 10g | 50 | 100 | 150 | 200 |
| 20g | 100 | 200 | 300 | 400 |
| 50g | 200 | 400 | 600 | 800 |
| Capacity | Verification | Inspection | ||
| Sensitiveness at full load | Greatest error allowed when fully loaded | Sensitiveness at full load | Greatest error allowed when fully loaded | |
| 1g | 2mg | 3 | 4 | 5 |
| 2g | 1 mg | 2 mg | 3mg | 4 mg |
| 5g | 2 mg | 4 mg | 6mg | 8 mg |
| 10g | 3 mg | 6 mg | 9 mg | 12 mg |
| 20g | 5 mg | 10 mg | 15 mg | 20 mg |
| 50g | 10 mg | 20 mg | 30 mg | 40 mg |
| 100g | 20 mg | 40 mg | 60 mg | 80 mg |
| 200g | 30 mg | 60 mg | 90 mg | 120 mg |
| 500g | 50 mg | 100 mg | 150 mg | 200 mg |
| 1kg | 100 mg | 200 mg | 300 mg | 400 mg |
| 2kg | 200 mg | 400 mg | 600 mg | 800 mg |
| 5kg | 300 mg | 600 mg | 900 mg | 1.2g |
| 10kg | 500 mg | 1 g | 105 mg | 2g |
| 20kg | 1 g | 2 g | 3g | 4g |
| 50kg | 2 g | 4 g | 6g | 8g |
| 100kg | 5 g | 10 g | 15g | 20g |
| 200kg | 10 g | 20 g | 30g | 40g |
| Capacity | Verification | Inspection | ||
| Sensitiveness at full load | Greatest error allowed when fully loaded | Sensitiveness at full load | Greatest error allowed when fully loaded | |
| 1 | 2 | 3 | 4 | 5 |
| 100g | 100mg | 200mg | 300mg | 400mg |
| 200g | 200 mg | 400mg | 600mg | 800mg |
| 500g | 500 mg | 1g | 1.5g | 2g |
| 1kg | 1g | 2g | 3g | 4g |
| 2kg | 2g | 4g | 6g | 8g |
| 5kg | 3g | 6g | 9g | 12g |
| 10kg | 5g | 10g | 15g | 20g |
| 20kg | 10g | 20g | 30g | 40g |
| 50kg | 15g | 30g | 45g | 60g |
| 100kg | 25g | 50g | 75g | 100g |
| 200kg | 50g | 100g | 150g | 200g |
| 300kg | 75g | 150g | 225g | 300g |
| 500kg | 100g | 200g | 300g | 400g |
| 1000kg | 150g | 300g | 450g | 600g |
| Capacity | Verification | Inspection | ||
| Sensitiveness at full load | Greatest error allowed when fully loaded | Sensitiveness at full load | Greatest error allowed when fully loaded | |
| kg | g | g | g | g |
| 1 | 2 | 3 | 4 | 5 |
| 1 | 2 | 3 | 4 | 5 |
| 5 | 5 | 10 | 15 | 20 |
| 10 | 10 | 20 | 30 | 40 |
| 20 | 20 | 40 | 60 | 80 |
| 50 | 30 | 60 | 90 | 120 |
| 100 | 50 | 100 | 150 | 200 |
| 200 | 100 | 200 | 300 | 400 |
| 300 | 150 | 300 | 450 | 600 |
| 500 | 200 | 400 | 600 | 800 |
| 1000 | 300 | 600 | 900 | 1200 |
| Capacity | Length between ends (Nominal) | Depth at the centre (Nominal) | Thickness of plate at the centre (Nominal) |
| L | D | T | |
| 1 | 2 | 3 | 4 |
| mm | mm | mm | |
| FLAT TYPE | |||
| 2g | 70 | 10 | 2 |
| 5g | 95 | 12 | 2 |
| 10g | 110 | 15 | 2 |
| 20g | 120 | 20 | 3 |
| 50g | 132 | 22 | 3 |
| 100g | 150 | 25 | 4 |
| 200g | 170 | 25 | 5 |
| 500g | 200 | 30 | 5 |
| 1g | 250 | 40 | 6 |
| 2g | 300 | 45 | 6 |
| 5g | 450 | 50 | 6 |
| 10g | 500 | 58 | 8 |
| 20g | 600 | 58 | 10 |
| 50g | 750 | 100 | 15 |
| 100g | 1000 | 110 | 18 |
| 200g | 1250 | 125 | 25 |
| OPEN PATTERN(BRIDGE) TYPE | |||
| 200 | 170 | 25 | 5 |
| 500 | 260 | 37 | 5 |
| 1 | 310 | 44 | 5 |
| 2 | 350 | 48 | 5 |
| 5 | 450 | 60 | 6 |
| 10 | 500 | 70 | 8 |
| 20 | 600 | 80 | 10 |
| 50 | 750 | 120 | 15 |
| 100 | 1000 | 150 | 20 |
| Capacity | Length between the ends (Nominal) | Depth at the centre (Nominal) | Thickness of plate at the centre knife edge (Nominal) |
| A | L | D | T |
| mm | mm | mm | |
| 2 | 70 | 3 | 2 |
| 5 | 95 | 3 | 2 |
| 10 | 110 | 4 | 2 |
| 20 | 120 | 20 | 3 |
| 50 | 135 | 20 | 3 |
| 100 | 150g | 20 | 4 |
| 200 | 200 | 20 | 6 |
| 500 | 235 | 25 | 8 |
| 1 | 300 | 30 | 8 |
| 2 | 320 | 30 | 8 |
| 5 | 350 | 32 | 10 |
| 10 | 400 | 40 | 12 |
| 20 | 500 | 50 | 14 |
| 50 | 700 | 70 | 18 |
| 100 | 800 | 80 | 20 |
| 200 | 1250 | 125 | 25 |
| Capacity | Length between the ends (nominal) | Depth at the centre (nominal) | Thickness of plate at the centre knife edge (Nominal) |
| L | D | T | |
| 1 | 2 | 3 | 4 |
| mm | mm | mm | |
| 100g | 150 | 30 | 4 |
| 200g | 200 | 40 | 5 |
| 500g | 300 | 40 | 6 |
| 1kg | 350 | 45 | 6 |
| 2kg | 400 | 45 | 6 |
| 5kg | 550 | 70 | 6 |
| 10kg | 600 | 80 | 6 |
| 20kg | 750 | 108 | 8 |
| 50kg | 900 | 116 | 8 |
| 100kg | 1200 | 138 | 14 |
| 200kg | 1350 | 148 | 16 |
| 300kg | 1650 | 154 | 18 |
| 500kg | 1800 | 178 | 25 |
| 100kg | 2000 | 200 | 32 |
| Capacity | Length between end knife-edges (Nominal) | Depth at the centre (Nominal) | Thickness of plate at the centre knife-edge (Nominal) |
| L | D | T | |
| 1 | 2 | 3 | 4 |
| mm | mm | mm | |
| 100 | 150 | 35 | 4 |
| 200 | 200 | 40 | 5 |
| 500 | 300 | 40 | 6 |
| 1 | 350 | 45 | 6 |
| 2 | 400 | 45 | 6 |
| 5 | 450 | 70 | 6 |
| 10 | 450 | 75 | 8 |
| 20 | 600 | 75 | 8 |
| 50 | 750 | 80 | 8 |
| 100 | 900 | 120 | 14 |
| 200 | 900 | 133 | 16 |
| 300 | 1050 | 142 | 16 |
| 500 | 1350 | 192 | 20 |
| 1000 | 1650 | 203 | 25 |
| Capacity | Length between the end knife-edges (nominal) | Depth at the centre (nominal) | Thickness of plate at the centre (nominal) |
| L | D | T | |
| 1 | 2 | 3 | 4 |
| Kg | mm | mm | mm |
| SWAN-NECK WITH FIXED FLAT HOOKS | |||
| 5 | 550 | 70 | 6 |
| 10 | 600 | 80 | 6 |
| 20 | 750 | 108 | 6 |
| 50 | 900 | 116 | 8 |
| 100 | 1200 | 138 | 14 |
| 200 | 1350 | 148 | 16 |
| 300 | 1650 | 154 | 18 |
| WITH DETACHABLE FLAT HOOKS | |||
| 500 | 1800 | 178 | 25 |
| 1000 | 2000 | 200 | 32 |
1. Sensitiveness.-The balance shall be tested for sensitiveness near zero, middle and extreme position of the projection scale under three conditions of loading, namely, no1oad, half load and full load. The balance shall be such so as to record the change in mass of the order of 1 sub-division of the projection scale accurately within the limits of the value equivalent to the least count of the vernier or micrometre scale if provided, otherwise within half a division of the projection scale.
2. Accuracy of projection scale.-The accuracy of the projection scale shall be examined at 10 points of the scale under three different conditions of loading, namely, at no load, half load and full load. The maximum error at any point shall not exceed the value of the one half-sub-division of the projection scale, if no vernier or micrometer scale is provided or two divisions of the vernier or micrometre scale.
3. Consistency of performance.-Ten consecutive readings shall be noted by releasing and arresting the balance in the unloaded condition followed by another ten readings when the balance is in fully loaded condition. The standard deviation from the mean of the rest point shall be calculated separately for each condition, which in no case shall exceed half the division of the projection scale if no vernier or micrometre scale is provided or two divisions of the vernier or micrometre scale.
Part V
COUNTER MACHINES1. Definition
A counter machine is an equal arm weighing instrument of capacity not exceeding 50 kg, the pans of which are above the beam. Figure 55-P illustrates a typical counter machine.2. Capacities
The machines may be of the following maximum capacities:500. g, 1 kg, 2 kg, 3 kg, 5 kg, 10 kg, 15 kg, 20 kg, 25 kg, 30 kg and 50 kg.
3. General requirements
| Capacity | Minimum fall |
| 500g,1kg and 2kg | 6mm |
| 3kg,5kg, 10kg, 15kg | 10mm |
| 20kg,25kg and 30kg | 12mm |
| 50kg | 13mm |
4. Tests
| Capacity | Verification | Inspection | ||
| Sensitiveness when fully loaded | Maximum permissible error, in excess or deficiency, when fully loaded | Sensitiveness when fully loaded | Maximum permissible error in excess or deficiency, when fully loaded | |
| 1 | 2 | 3 | 4 | 5 |
| 500g | 1.5g | 2.2g | 4.5g | 4.5g |
| 1kg | 2.0g | 3.0g | 6.0g | 6.0g |
| 2 kg | 3.0g | 4.5g | 9.0g | 9.0g |
| 3 kg | 4.0g | 6.0g | 12.0g | 12.0g |
| 5 kg | 6.0g | 9.0g | 18.0g | 18.0g |
| 10 kg | 7.0g | 10.5g | 21.0g | 21.0g |
| 15 kg | 8.0g | 12.0g | 24.0g | 24.0g |
| 20 kg | 9.0g | 13.5g | 27.0g | 27.0g |
| 25 kg | 10.0g | 15.0g | 30.0g | 30.0g |
| 30 kg | 11.0g | 20.0g | 33.0g | 40.0g |
| 50 kg | 15.0g | 30.0g | 45.0g | 60.0g |
5. Sealing
Each machine shall be provided with a plug or stud of soft metal on a conspicuous part of the beam or body to receive t'ie stamp. or seal of the verification authority.. Such a plug or stud shall be made irremovable by undercutting it or by some suitable method.HEADING CAUTOMATIC WEIGHING MACHINES1. Definitions
2. General requirements
3. Testfgraccuracy
4. Maximum permissible error
When tested by the application of standard weights the maximum permissible error of the indicator shall be as given in Table 43-L.| Capacity of machine | Maximum permissible error, in excess or in deficiency when fully loaded |
| (1) | (2) |
| 1kg | 2g |
| 2 kg | 3g |
| 3 kg | 4g |
| 5 kg | 6g |
| 10 kg | 7g |
| 15 kg | 10g |
| 20 kg | 15g |
| 25 kg | 20g |
| 50 kg | 30g |
| 100 kg | 40g |
| 150 kg | 60g |
| 200 kg | 70g |
| 250 kg | 80g |
| 300 kg | 100g |
| 500 kg | 160g |
| 1000 kg | 280g |
| 1500 kg | 360g |
| 2000 kg | 450g |
5. Marking
Part I
AUTOMATIC RAIL-WEIGHBRIDGESTERMINOLOGY(Terms and definitions)1. General definitions
2. Construction
Note.-In this Recommendation the term "device" is applied to any part which uses any means to perform one or more specific functions.3. Metrological characteristics
4. Indications and errors
5. Influence quantity
A quantity that is not the subject of the measurement but which influences the value of the measure and or the indication of the instrument.(i)Influence factor: An influence quantity having a value within the specified rated operating conditions of the instrument.(ii)Disturbance: An influence quantity having a value that falls within the limits specified in this specification but that falls outside the' rated operating conditions of the instrument. .6. Tests
7. Rail vehicles
Part II
METROLOGICAL AND TECHNICAL REQUIREMENTS1. Scope
2. Metrological requirements
0.
2.
,0.5,1,2An instrument may be in a different accuracy class for wagon weighing than that fortrain weighing.| Accuracy | Percentage of mass of single wagon or total train, as appropriate | |
| Verification | Inspection | |
| 0.2 | ±0.10% | ±0.2% |
| 0.5 | ±0.25% | ±0.5% |
| 1 | ±0.50% | ±1.0% |
| 2 | ±1.00% | ±2.0% |
| Maximum permissible errors | Load(m) expressed in number of scale intervals |
| ±0.5d | 0≤m≤500 |
| ±1.0d | 500≤m≤2000 |
| ±1.5d | 2000≤m≤10000 |
2.
3. Technical requirement
4. Requirements for electronic instruments
Electronic instruments shall comply with the following requirements, in addition to the applicable requirements of all other clauses.5. Metrological controls
The metrological controls of instruments shall consist of the following:pattern evaluationinitial verificationin-service inspection6. On site test methods
| Total number of wagons in test train (n) | Minimum number of reference wagons |
| <n<10 | N |
| 10<n≤30 | 10 |
| 30<n | 15 |
1. Documentation [5(1)(i)]
Review the documentation that is submitted, including necessary photographs, drawings, diagrams, general software information, relevant technical and functional description of main components, devices, etc., to determine if it is adequate and correct.Consider the operational manual.2. Comparing construction with documentation [5(1)(i)]
Examine the various devices of the instrument to ensure compliance with the documentation.Examine the simulator to ensure that it is adequate for train movement simulation. It shall provide the signals from track switches, or other vehicle type identification devices, normally transmitted when a vehicle passes over the weighing system. It is not expected to simulate effects such as dynamic loading.3. Initial examination
4. General
5. Test program
6. Performance tests during pattern evaluation
The equipment under test should have the following items associated with it, for the purpose of testing: Weight simulator; Train wheel simulator.For practical reasons, the weight simulator may take various forms. For example, it may be a weigh pan or platform scale of approximately 1/1000th of the weight range of a site installation.Whichever method is adopted, it must be independently calibrated and readable to at least 0.1 d.7. Additional functionality
8. Influence factor tests
SUMMARY OF TESTS| | Test | Characteristic under test | Conditions applied | |
| (1) | Static temperature | Influence factor | mpe(*) |
| (2) | Damp heat, steady state | Influence factor | mpe |
| (3) | Mains power supply voltage variation (AC) | Influence factor | mpe |
| (4) | Battery power supply Voltage variation (DC) | Influence factor | mpe |
| Environmental Phenomena | Test Specification |
| Temperature | Reference of 200C |
| Specified high for 2 hours | |
| Specified low for 2 hours | |
| 50C | |
| Reference of 200C |
| Object of the test: | To verify compliance with the provisions in paragraph 2(9)(i) of part II under conditions of dry heat (non-condensing) and cold. |
| Test procedures in brief Precondition: | 16 hours |
| Condition of the EUT: | Normal power supplied and "on" for a time period equal to or greater than the warm-up time specified by the manufacturer. Power is to be "on" for the duration of the test. |
| Stabilization: | 2 hours at each temperature under "free air" conditions. |
| Temperature: | As specified in paragraph 2(9)(i) of part II. |
| Temperature sequence: | Reference temperature of 200C;Specified high temperature;Specified low temperature;A temperature of 50CReference temperature of 200C |
| Number of test cycles: | At least one cycle. |
| Weighing test: | Adjust the EUT as close to zero indication as practicable prior to the test (if an automatic zero-tracking device is connected adjust it to a value near zero). The EUT shall not be readjusted at any time during the test.After stabilization at the reference temperature and again at each specified temperature, apply at least five different test loads or simulated loads and record:(a) Date and time;(b) Temperature;(c) Relative humidity;(d) Test load;(e) Indications (as applicable);(f) Errors;(g) Functional performance. |
| Maximum allowable variations: | All functions shall operate as designed. All errors shall be within the maximum permissible errors specified in Table II. |
| Environmental Phenomena | Test specification |
| Damp heat, Steady state | Upper limit temperature and relative humidity of 85% for 2 days (48 hours) |
| SUPPLEMENTARY INFORMATION TO THE TEST PROCEDURE | |
| Object of the test: | To verify compliance with the provisions in paragraph 4(1)(i) of part II under conditions of high humidity and constant temperature. |
| Precondition: | None required. |
| Condition of the EUT: | Normal power supplied and "on" for a time period Equal to or greater than the warm-up time specified by the manufacturer. Power is to be "on" for the duration of the test.Adjust the EUT s close to zero indication as Practicable prior to the test (if an automatic zero-tracking device is connected, adjust it to a value near zero). The EUT shall not be readjusted at any time during the test.The handling of the EUT shall be such that no condensation of water occurs on the EUT. |
| Stabilization: | 3 hours at reference temperature and 50% humidity;2 days (48 hours) at the upper limit temperature as specified in paragraph 2(9)(i) of part II. |
| Temperature: | Reference temperature of 200C and at the upper limit as specified in paragraph 2(9)(i) of part II. |
| Relative humidity: | 50%at reference temperature;85%at upper limit temperature. |
| Temperature-humidity sequence: | Reference temperature of 200C at 50% humidity;The upper limit temperature at 85% humidity;Reference temperature of 200C at 50% humidity; |
| Number of test cycles: | At least one cycle. |
| Weighing test and test sequence: | After stabilization of the EUT at reference temperature and 50% humidity, apply at least five different test loads or simulated loads and record:(a) Date and time;(b) Temperature;(c) Relative humidity;(d) Test load;(e) Indications (as applicable);(f) Errors;(g) Functional performance |
| Increase the temperature in the chamber to the upper limit and increase the relative humidity to 85%. Maintain the EUT at no load for a period of 2 days (48 hours). Following the 2 days, apply at least five test loads and record the data as indicate above. Allow full recovery of the EUT before any other tests are performed. | |
| Maximum allowable variations: | All errors shall be within the maximum permissible errors specified in Table II. |
| Environmental phenomena | Test specification |
| Voltage variation | Reference voltage |
| Reference voltage + 10% | |
| Reference voltage-15% | |
| Reference voltage | |
| SUPPLEMENTARY INFORMATION TO THE TEST PROCEDURES | |
| Object of the test: | To verify compliance with the provisions in paragraph 2(9)(ii) of part II under conditions of voltage variations. |
| Test procedures in brief: | |
| Precondition: | None required. |
| Condition of the EUT: | Normal power supplied and "on" for a time period equal to or greater than the warm-up time specified by the manufacturer. Power is to be "on" for the duration of the test.Adjust the EUT as close to zero indication as practicable prior to the test. If it has an automatic zero-setting function then the instrument should be set to zero after applying each level of voltage. |
| Number of test cycles: | At least one cycle. |
| Weighing test: | The EUT shall be tested at no load and with one test load or simulated load between 50% and maximum capacity of the EUT. |
| Test sequence: | Stablilize the power supply at the reference voltage within the defined limits and record:(a) Date and time;(b) Temperature;(c) Relative humidity;(d) Power supply voltage;(e) Test loads;(f) Indications (as applicable);(g) Errors;(h) Functional performance.Repeat the test weighing for each of the voltages and record the indications. |
| Maximum allowable variations: | All functions shall operate as designed. All errors shall be within the maximum permissible error specified in Table II. |
| (4) Battery power supply voltage variation (DC) [2(9)(iii) and 4(3)(viii)] | |
| Test method: | Variation in DC power supply. Where the EUT continues to operate below the stated battery voltage, the following test shall be conducted using an equivalent variable DC power source. |
| Object of the test: | To verify compliance with the provisions in paragraph 2(9)(iii) and 4(3)(viii) of part II under conditions of varying DC power supply. The requirements shall be met either by use of an equivalent variable DC power source or by allowing the allowing the battery voltage to fall by use. |
| Reference to standard: | No reference to international standards can be given at the present time. |
| Test procedures in brief: | The test consists of subjecting the EUT to DC power variations when the former is operating under normal atmospheric conditions with one test load or simulated load between 50% and maximum capacity of the EUT. |
| Test severity: | Supply voltage: lower limit, the voltage at which the EUT clearly ceases to function(or is automatically put out of service) + 2% of this voltage. |
| Number of test cycles: | At least one cycle. |
| Conduct of the test: | |
| Precondition | None required |
| Test equipment: | Variable DC power source;Calibrated voltmeter;Load cell simulator, if applicable. |
| Condition of the EUT: | Normal power supplied and "on" for a time period equal to or grater than the warm-up time specified by the manufacturer.Adjust the EUT as close to zero indication as practicable prior to the test. If it has an automatic zero-setting function as part of the automatic weighing process, then the instrument should be set to zero after applying each level of voltage. |
| Test sequence: | Stabilize the power supply at nominal battery voltage ±2% and record the following data at no load and with one load or simulated load between 50% and maximum capacity of the EUT.(a) Date and time;(b) Temperature;(c) Relative humidity;(d) Power supply voltage;(e) Test load;(f) Indications (as applicable);(g) Errors;(h) Functional performance.Reduce the power supply to the EUT until the equipment clearly ceases to function and note the voltage. Switch the EUT "of" and increase the power supply voltage to nominal battery voltage ±2%. Switch the EUT "on" and reduce the power supply voltage to the above noted voltage (out of service voltage) ±2%of the noted voltage. Record the data indicated above. |
| Maximum allowable variations: | All functions shall operate as designed. All errors shall be within the maximum permissible errors specified in Table II. |
9. Disturbance tests [4(1)(ii) and 4(3)(iv)]
SUMMARY OF TESTS| | Test | Characteristic under test | Conditions applied | |
| 1. | Voltage dips and short Interruptions | Disturbance | sf(*) |
| 2. | Electrical fast transients /burst immunity | Disturbance | sf |
| 3. | Electrostatic discharge | Disturbance | sf |
| 4. | Electromagnetic susceptibility | Disturbance | sf |
| Environmental phenomena | Test Specification |
| Interruption from reference voltage to zero voltage for one half cycle | |
| Voltage dips and short interruptions | Interruption from reference voltage to 50% of reference voltage for two half cycles These mains voltage interruptions shall be repeated ten times with a time interval of at least 10 seconds |
| Object of the test: | To verify compliance with the provisions in paragraph 4(1)(ii) of part II under conditions of short time mains voltage interruptions and reductions. |
| Test procedures in brief: | |
| Precondition: | Not required. |
| Condition of the EUT: | Normal power supplied and "on" for a time period equal to or greater than the warm-up time specified by the manufactrurer.Adjust the EUT as close to zero indication as practicable prior to the test. The EUT shall not be re-adjusted at any time during the test except to reset if a significant fault has been indicated. |
| Number of test cycles: | At least one cycle. |
| Weighing test and test sequence: | Stabilize all factors at nominal reference conditions. Apply one load or simulated load between 50% and maximum capacity of the EUT and record:(a)Date and time;(b)Temperature;(c)Relative humidity;(d)Power supply voltage(e)Test load;(f)Indications (As applicable);(g)Errors;(h)Functional performance.Interrupt the power supply to zero voltage for a period equal to one half cycle and conduct the test. During interruption observe the effect on the EUT and record as appropriate.Reduce the power supply to 50% of nominal voltage for a period equal to two half cycles and conduct the test. During reductions observe the effect on the EUT and record, as appropriate. |
| Maximum allowable variations: | The difference between the weight indication due to the disturbance and the indication without the disturbance either shall not exceed the values given in paragraph 4(2)(v) of part I, or the EUT shall detect and act upon a significant fault. |
| Environmental phenomena | Test specification |
| Fast transient common mode | 0.5 k V (peak)5 /50 ns T1/Th5kHzrep. frequency |
3. m according to the manufacture's functional specification.
TABLE XINPUT AND OUTPUT DC POWER PORTS| Environmental phenomena | Test specification |
| Fast transient common mode | 0.5kV (peak)5/50 ns T1/Th5kHzrep. frequency |
| Environmental phenomena | Test specification |
| Fast transient common mode | 0.5kV (peak)5/50ns T1Th5kHzrep. frequency |
| Object of the test: | To verify compliance with the provisions in paragraph 4(1)(ii) of part II under conditions of short time mains voltage interruptions and reductions. |
| Test procedures in brief: | |
| Precondition: | None required. |
| Condition of the EUT: | Normal power supplied and "on" for a time period equal to or greater than the worm-up time specified by the manufacturer.Adjust the EUT as close to zero indication as practicable prior to the test. The EUT shall not be re-adjusted at any time during the test except to reset if a significant fault has been indicated. |
| Stabilization: | Before any test stabilize the EUT under constant environmental conditions. |
| Weighing test | Stabilize all factors at nominal reference conditions. Apply one load or simulated load between 50% and maximum capacity of the EUT and record the following with and without the transients:(a)Date and time;(b)Temperature;(c)Relative humidity;(d)Test load;(e)Indications (as applicable);(f)Errors;(g)Functional performance. |
| Maximum allowable variations: | The difference between the weight indication due to the disturbance and the indication without the disturbance either shall not exceed the value given in paragraph 4(2)(v) of part I or the instrument shall detect and act upon a significant fault. |
| Environmental phenomena | Test specification |
| Electrostatic discharge | 8 k V air discharge6 kV contact discharge |
| Object of the test | To verify compliance with the provisions in paragraph 4(1)(ii) of part II under conditions where electrostatic discharges are applied. |
| Test procedures in brief: | |
| Precondition | None required. |
| Condition of the EUT: | Normal power supplied and "on" for a time period equal to or greater than the warm-up time specified by the manufacturer.Adjust the'EUT as close to zero indication as practicable prior to the test. The EUT shall not be re-adjusted at any time during the test except to reset if a significant fault has been indicated. |
| Stabilization | Before any test stabilize the EUT under constant environmental conditions. |
| Weighing test | Stabilize all factors at nominal reference conditions. Apply one load or simulated load between 50% and maximum capacity of the EUT and record the following with and without electrostatic discharge(a) date and time;(b) temperature;(c) relative humidity;(d) test load;(e) indications (as applicable);(f) errors;(g) functional performance. |
| Maximum allowable variations | The difference between the weight indication due to the disturbance and the indication without the disturbance either shall not exceed the value given in paragraph 4(2)(v) of part I or the instrument shall detect and act upon a significant fault. |
10. Span stability test [4(4)(iii)]
SUMMARY OF TEST| Test | Characteristic under test | Condition applied |
| Span stability | Stability | 1/2 absolute mpe(*) |
| Test method: | Span stability. |
| Object of the test: | To verify compliance with the provisions in paragraph 4(4)(iii) after the EUT has been subjected to the performance tests. |
| Reference to standard: | No reference to international standards can be given at the present time. |
| Test procedures in brief: | The test consists of observing the variations of the error of the EUT or simulator under sufficiently constant ambient conditions (reasonable constant conditions in a normal laboratory environment) at various intervals: before, during, and after the EUT has been subjected to performance tests.The performance tests shall include the temperature test and, if applicable, the damp heat test; an endurance test shall not be included. Other performance tests listed in this Annex may be performed.The EUT shall be disconnected twice from the mains power supply (or battery supply where fitted) for at least 8 hours during the period of the test. The number of disconnections may be increased if so specified by the manufacturer or at the discretion of the approval authority in the absence of any specification.In the conduct of this test, the operating instructions for the instrument as supplied by the manufacturer shall be considered.The EUT shall be stabilized at sufficiently constant ambient conditions after switch-on for at least five hours, and at least 16 hours after the temperature and damp heat tests have been performed. |
| Test severities: | Test duration 28 days or the time period necessary to conduct the performance tests, whichever is less. |
| Time(t) between tests (days):0.5≤1≤10Test load near maximum capacity (Max): the same test weights shall be used throughout the test. | |
| Maximum allowable variations: | The variation in the errors of indication shall not exceed half the absolute value of the maximum permissible error in Table II for the test load applied on any of the n measurements. |
| Number of test (n): | At least 8 except where the differences of the results indicate a trend more than half the allowable variation specified, the measurements shall be continued until the trend comes to rest or reverses itself, or until the error exceeds the maximum allowable variation. |
| Precondition: | None required |
| Condition of the EUT: | Normal power supplied and "on" for a time period equal to or greater than the warm-up time specified by the manufacturer.Adjust the EUT as close to zero indication as practicable before each test. The automatic zero-tracking should be made inoperative during the test (if the EUT is so equipped). |
| Test sequence: | Stabilize all factors at nominal reference conditions.Adjust the EUT as close to zero as possible.Automatic zero-tracking shall be made inoperative and the automatic built-in span adjustment device shall be made operative.Initial measurementDetermine the span error using the following method:Determine the initial zero error (Eo)If necessary disable any automatic zero-setting or zero-tracking devices, by placing a "zero weight" of for example 10 times the scale interval on the load receptor. Note the indication at zero (Io).Either by use of an indicator with a suitable higher resolution scale interval or using the change point weight method in paragraph 4(2)(ii) of Annexure A(noting the total addition change point weight ∆Lo) determine and record the initial zero error (Eo)Determine the error at near Max capacity (EL)Carefully remove the change point weights (if used) and apply the test load (or simulated load) and note the indication (IL).Either by use of an indicator with a suitable higher resolution scale interval or using the change point weight method in paragraph 4(2)(ii) of Annexure A(noting the total addition change point weight ∆Lo) determine and record the error at near Max capacity (EL).Record:(a) Date and time;(b) Temperature;(c) Barometric pressure;(d) Relative humidity;(e) Value of 0.1 d;(f) Test load;(g) Total of added change point weights at zero load ∆Lo;(h) Total of added change point weights at test load ∆L;(i) The following indications:· Indication at zero (Io);· The indication of test load (IL)(j) Calculate;· Initial zero error Eo;· Error at test load (EL)(k) Change in locationAnd apply all necessary corrections resulting from variations of temperature, pressure, etc. between the various measurements.Immediately repeat steps 1 and 2 four more times and determine and record the average value of the error for the five tests.· Subsequent measurementsAfter observing the time between measurements requirement repeat the test sequence 1 to 2 once recording the data above unless:· Either the result is outside the maximum allowable variation, orThe range of the five readings of the initial measurement is more than 0.1 d, in which case continue for more times repeating steps 1 and 2 recording the data above and determine and record the average value of the error of the five tests.The measurements shall continue until there are at least 8 measurements except where the differences of the results indicate a trend more than half the allowable variation specified, the measurements shall be continued until the trend comes to rest or reverses itself, or until the error exceeds the maximum allowable variation. |
11. In situ tests
1. The alignment calibration applies to instruments that operate by partial weighing of two-axle wagons and the same instrument is required for use as the control instrument for the purposes of determining the mass of reference wagons in paragraph 2(8)(iii)(b) of part II.
2. Instruments that operate by partial weighing are exempt from the alignment calibration procedure provided the following:
the top surface of both rails along the length of the weight zone are vertically aligned to ± 1 mm, and the alignment has been checked along both rails at not less than two positions on the load receptor and not less than two positions within a wagon length from the load receptor on each associated apron.3. For instruments not covered by para 2 of Annexure B, a calibration correction shall be determined by application of the alignment calibration procedure in para 4 of Annexure B. This calibration correction shall be added to each totalized wagon weight to determine the mass of each reference wagon.
4. The alignment calibration is conducted with the use of a single empty uncoupled wagon of a wheelbase similar to those wagons used for in-motion testing. An example of an alignment calibration is given in para 5 of Annexure B.
5. Example of alignment calibration test sheet.
Accuracy class: 1Maximum capacity: a = 35tTypical wagon tare weight: b = 11.5tMass of standard weights required: c = 17t (a − 1.5b, rounded down)Scale interval: 0.1 tScale interval for stationary load: 0.01 tTABLE XII| | Position on load receptor | Indicated weight(t) | ||
| Empty | Loaded wagon | ||
| First axle | Leading end | 5.76 | 14.27 |
| Middle | 5.75 | 14.26 | |
| Trailing end | 5.75 | 14.26 | |
| Second axle | 5.75 | 14.25 | |
| 5.75 | 14.25 | ||
| 5.74 | 14.24 | ||
| Total of six weighings | 34.50 | 85.53 | |
| Divide total by three | d=11.50 | e=28.53 | |
| Derived mass of standard weights | f=e-d=17.01 | ||
| Calibration | c-f=-0.01 |
41.
38.
+(−0.01)=41.37Note.-The calibration correction computed in this example is not intended to be typical.[HEADING EAUTOMATIC GRAVIMETRIC FILLING INSTRUMENTSPart I
1. General definitions
2. Construction
Note.-In this Part the term device is applied to any part which uses any means to perform one or more specific functions.Part of – measurement instrument intended to receive the load.
(iii)Feeding device:Device which provides the supply of the product from bulk to the weighing unit. It may operate in one or more stages.(iv)Control devices(a)Feed control device.-Device which regulates the rate of the feed of the feeding device(b)Fill setting device.-Device which allows the setting of the pre-set value(c)Final feed cut off device.-Device which controls the cut off the final feed so that the average mass of the fills corresponding to the preset value. This device may include an adjustable compensation for the material in flight.(d)Correction device.-Device, which automatically corrects the setting of the filling instrument.3. Metrological characteristics
4. Indications and errors
5. Influences and reference conditions
6. Tests
Part II
1. General
2. Metrological requirements
| Value of the mass of the fill M(g) | Maximum permissible deviation of each fill from the average for class x(1) | |
| ·Initial | ·In service | |
| Verification | Inspection | |
| M<50 | 6.3% | 9% |
| 50<M<100 | 3.15g | 4.5g |
| 100<M<200 | 3.15% | 4.5% |
| 200<M<300 | 6.3g | 9g |
| 300<M<500 | 2.1% | 3% |
| 500<M<1000 | 10.5g | 15g |
| 1000<M<10000 | 1.05% | 1.5% |
| 10000<M<15000 | 105g | 150g |
| 15000<M | 0.7% | 1% |
3. Technical requirements
4. Requirem'nts for electronic instruments
Electronic filling instruments shall comply with the following requirements, in addition to the applicable requirements of all other clauses of this specification.5. Metrological controls
6. Test methods
| m≤10kg | 60 fills |
| 10kg≤m≤25kg | 32 fills |
| 25kg≤m≤100kg | 20 fills |
| 100kg≤m | 10 fills |
1. Examination for pattern approval
2. Examination for initial verification
3. General test requirements
4. Test program
5. Static tests (pattern approval stage)
6. Influence. factorand disturbance tests
0.
25x.
(120/7)=11.34gNote.-This definition of significant fault far cumulative weighers does not include Min: A cumulative weigher would normally be used at or near to Max.(b)Limits of error for influence factor-testsThe following examples show how to determine the-limit of error for influence' factor testing for selective combination weighers and cumulative weighers when testing.(i)For selective combination weighers the maximum permissible error for any static test load during influence factor tests shall be 0.25 of the maximum permissible deviation for in-service verification for the, appropriate, mass of the fill divided by the square root of the average (or optimum) number of loads per fill.Example: Class X(1) selective combination weigher, where the average number of loads per fill = 4. For a static test load = 100 g the appropriate mass of the fill will be 400 g for which the maximum permissible deviation for in-service verification is.3%o i.e. 12 g.Hence the maximum permissible error for influence factor tests is: 0.25 (12g/4)=1.5g.(ii)For, cumulative weighers the maximum permissible error for any static test load during influence factor tests shall be 0.25 of the maximum permissible deviation for in-service verification for the rated minimum fill divided by the square root of the minimum number of loads per fill.Example: For a class X(i) instrument with Max = 1200 g and rated, minimum fill of 8 kg: 8 kg/ 1.2 kg = 6.67; therefore the minimum number of loads per fill = 7.The maximum permissible deviation (as specified in Table 1) for the minimum fill of 8 kg is 1.5%, i.e., 120 g. Hence the maximtiinl permissible error for influence factor tests is:| Test | Characteristic under test | Conditions applied |
| Static temperatures | Influence factor | Mpe(*) |
| Temperature effect on no-load indication | Influence factor | Mpe(*) |
| Damp heat, steady state | Influence factor | Mpe(*) |
| Power voltage variation | Influence factor | Mpe(*) |
| Tilting | Influence factor | Mpe(*) |
| Environmental Phenomena | Test specification |
| Reference of 200C | |
| Temperature | Specified high for 2 hours |
| Specified low for 2 hours | |
| 50C | |
| Reference of 200C |
| Object of the test: | To verify compliance with the provisions in paragraph 2(5)(i) under conditions of dry heat (non condensing) and cold. The test specified in 6(2)(ii) of this Annex may be conducted during this test. |
| Test procedures in brief. | |
| Precondition: | 16 hours |
| Condition of the EUT: | Normal power supplied and "on" for a time period equal to or greater than the warm-up time specified by the manufacturer. Power is to be "on" for the duration of the test. The automatic zero-setting should be disabled. |
| Stabilization: | 2 hours at each temperature under "free air" conditions. |
| Temperature: | As specified in paragraph 2(5)(i) |
| Temperature sequence: | Reference temperature of 200CSpecified high temperatureSpecified low temperatureTemperature of 50CReference temperature of 200C |
| Number of test cycles: | At least one cycle. |
| Weighing test: | After stabilization at the reference temperature and again at each specified temperature conduct the following:Adjust the EUT as close to zero indication as practicable. It is important to ensure that the test result is unaffected by the automatic zero-setting function which should, therefore, be disabled. The EUT shall be tested with at least five different static test loads (or simulated loads) including Maximum and Minimum capacities. When loading or unloading weights the load must be respectively increased or decreased monotonically.(a)Date and time(b)Temperature(c)Relative humidity(d)Test load(e)Indications(f)Errors(g)Functional performance |
| Maximum allowable variations: | All functions shall operate as designed. All errors shall be within the maximum permissible errors specified in paragraph 2(ii) |
| Maximum permissible | The change in zero indication shall not vary by more than the maximum permissible error for influence factor tests for a load equal to the rated minimum fill for a temperature difference of 50C is calculated. |
| Condition of EUT: | Normal power supplied and "on" for a time period equal to or greater than the warm-up time specified by the manufacturer. Power is to be "on" for the duration of the test. |
| Environmental phenomena | Test specification |
| Damp heat, steady state | Upper limit temperature and relative humidity of 85 % for 2 days |
| Object of the test: | To verify compliance with the provisions of paragraph 4(3)(i) under conditions of high humidity and constant temperature. |
| Precondition: | None required. |
| Test load: | One static test load close to minimum capacity. |
| Condition of the EUT: | Normal power supplied and "on" for a time period equal to or greater than the warm-up time specified by the manufacturer. Power is to be "on" for the duration of the test.The zero-setting and zero-tracking facilities shall be enabled as for normal operation.Adjust the EUT as close to zero indication as is practicable, prior to the test.The handling of the EUT shall be such that no condensation of water occurs on the EUT. |
| Stabilization: | Three hours at reference.temperature and 50% humidity. Two, days at the upper limit temperature as specified in paragraph 2(5)(i) |
| Temperature: | Reference, temperature of 20°C and at the upper, limit as specified in paragraph 2(5)(i). |
| Relative humidity: | 50%at reference temperature. 85% at upper limit temperature. |
| Temperature/humidity sequence: | The reference temperature of 200C at 50% humidity. The upper limit temperature at 85% humidity. The reference temperature of 200C at 50% humidity. |
| Number of test cycles: | At least one cycle. |
| Weighing test and test sequence: | After stabilization of the EUT at reference temperature and 50% humidity apply the test load.(a)Date and time(b)Temperature(c)Relative humidity(d)Test load(e)Indications(f)ErrorsIncrease the temperature in the chamber to the upper limit and increase the relative humidity to 85%. Maintain the EUT at no load for a period of 2 days. Following the 2 days, apply the static test load and record the data as indicated above. Allow full recover of the EUT before any other tests are performed. |
| Maximum allowable variations: | All errors shall be within the maximum permissible errors specified in paragraph 2(4) |
| Environmental phenomena | Test specification |
| Reference voltage | |
| Voltage variation | Reference voltage +10% |
| Reference voltage 15% | |
| Reference voltage |
| Object of the test: | To verify compliance with the provisions of paragraph 2(5)(ii) under conditions of voltage variations. |
| Test procedures in brief. | |
| Precondition: | None required. |
| Condition of the EUT: | Normal power supplied and "on" for a time period equal to or greater than the warm-up time specified by the manufacturer.Adjust the EUT as close to zero indication as practicable, prior to the test. If it has an automatic zero-setting function then the instrument should be set to zero after applying each level of voltage. |
| Number of test cycles: | At least one cycle. |
| Weighing test: | The EUT shall be tested with a test load approximately equal to the minimum capacity. Zero-setting function shall be in operation. |
| Test sequence: | Stabilize the power supply at the reference voltage within the defined limits and apply the test load. |
| Record the following data: | (a) Date and time(b) Temperature(c) Power supply voltage(d) Test load(e) Indications (as applicable)(f) Errors(g) Functional performance |
| Maximum allowable variations: | All functions shall operate as designed. All errors shall be within the maximum permissible errors specified in paragraph 2(4). |
| Test method: | Static tests whilst the EUT is tilted. |
| Object of the test: | To verify compliance with the provisions in paragraph 2(5)(iii) under conditions of tilt. |
| Test procedure in brief: | The test consists of tilting the EUT both forwards and backwards, longitudinally and from side to side (transversely), while observing the weight indications for a static test load. |
| Test severities: | Instruments without level indicators shall be tested at a tilt of 5% |
| Maximum allowable | All indications shall be within maximum permissible errors specified in paragraph 2(4) |
| Condition of EUT: | Normal power supplied and "on" for a time period equal to or greater than the warm-up time specified by the manufacturer. Power is to be "on" for the duration of the test.Adjust the EUT in its reference position (not tilted) as close to zero indication as practicable. If the instrument is provided with automatic zero-setting it shall not be in operation.The test shall be performed with a test load approximately equal to the maximum capacity. |
| Test sequence: | Record the zero indication. Apply the test load and record the indication. Remove the test load.Without further adjustment to any control affecting metrological performance tilt the EUT to the appropriate extent in the opposite direction and repeat the static weighing tests as above.Tilt the EUT in the transverse direction to the appropriate extent and repeat the tests.Tilt the EUT in the opposite direction and repeat the tests.In order to determine the influence of tilting on the loaded instrument, the indication obtained at each tilt shall be corrected for the deviation from zero which the instrument had prior to loading. |
| Voltage dips and short interruptions | Interruption from reference voltage to zero voltage for one half cycle.Interruption from reference voltage to 50% of reference voltage for two half cycles.These mains voltage interruptions shall be repeated ten times with a time interval of at least 10 seconds. |
| Object of the test: | To verify compliance with the provisions in paragraph 4(1)(iii) under conditions of short mains voltage interruptions and reductions while observing the weight indication for a static load approximately equal to the minimum capacity. |
| Test procedures in brief: | |
| Precondition: | None required |
| Condition of the EUT: | Normal power supplied and "on" for a time period equal to or greater than the warm-up time specified by the manufacturer.Adjust the EUT as close to zero indication as practicable, prior to the test. Zero-setting functions shall not be in operation. Not to be adjusted or readjusted at any time during the test except the reset if a significant fault has been indicated. |
| Number of test cycles: | At least one cycle. |
| Weighing test and test sequence: | The EUT shall be tested with a test load approximately equal to the minimum capacity.Stabilize all factors at nominal reference conditions. Apply the test load and record the following data:(a) date and time(b) temperature(c) power supply voltage(d) test load(e) indications(f) errors(h) functional performanceInterrupt the power supply to zero voltage for a period equal to one half cycle and conduct the test. During nterruption observe the effect on the EUT and record as appropriate.Reduce the power supply to 50% of nominal voltage for aperiod equal to two half cycles and conduct the test. Duringreductions observe the effect on the EUT and record, asappropriate. |
| Maximum allowable variations: | The difference between the weight indication due to the disturbance and the indication without the disturbance either shall not exceed the values given in paragraph 4(2)(v), or the EUT shall detect and act upon a significant fault. |
| Environmental phenomena | Test specification |
| Fast transient common mode | 0.5KV(peak)5/50ns T1/ThSkHz rep. Frequency |
| Environmental phenomena | Test specification |
| Fast transient common mode | 0.5kv(peak) 5/50ns T1/Th5 kHz rep. Frequency |
| Environmental phenomena | Test specification |
| Fast transient common mode | 0.5Kv(peak) 5/50ms T1/Th5 kHz rep. Frequency |
| Object of the test: | To verify compliance with the provisions in paragraph 4(1)(iii) under conditions where electrical bursts (fast transients) are superimposed on the mains voltage while observing the weight indication for a static test load pproximately equal to the minimum capacity. |
| Test procedures in brief: | |
| Precondition: | None required. |
| Condition of the EUT: | Normal power supplied and "on" for a time period equal to or greater than the warm-up time specified by the manufacturer. Reset the EUT if a significant fault has been indicated. |
| Stabilization: | Before any test stabilize the EUT under constant environmental conditions. |
| Weighing test: | With the single static load in place record the following with and without the transients:(a)Date and time(b)Temperature(c)Test load(d)Indications (as applicable). |
| Maximum allowable variations: | The difference between the weight indication due to the disturbance and the indication without the disturbance either shall not exceed the value given in paragraph 4(2)(v) of Part I, or the instrument shall detect and act upon a significant fault. |
| Environmental phenomena | Test specification |
| Electrostatic discharge | 8 kv air discharge6 kv contact discharge |
| Object of the test: | To verify compliance with the provisions of paragraph 4(1)(iii) under conditions where electrostatic discharges are applied while observing the weight indication for a static test load approximately equal to the minimum capacity. |
| Test procedures in brief: | |
| Precondition: | Normal power supplied and "on" for a time period equal to or greater than the warm-up time specified by the manufacturer. Reset the EUT if a significant fault has been indicated. |
| Stabilization: | Before any test stabilize the EUT under constant environmental conditions. |
| Weighing test: | With the single static load in place, record the following with and without electrostatic discharge:(a)Date and time(b)Temperature(c)Test load(d)Indications (as applicable) |
| Maximum allowable variations: | The difference between the weight indication due to the disturbance and the indication without the disturbance either shall not exceed the value given in paragraph 4(2)(v) of Part I or the instrument shall detect and act upon a significant fault. |
7. Span stability test (paragraph 4(3)(iii)
| Test method: | Span stability. |
| Object of the test: | To verify compliance with the provisions of paragraph 4(3)(iii) after the EUT has been subjected to the performance tests. |
| Reference to standard: | No reference to international standards can be given. |
| Test procedure in brief: | The test consistsof observing the variations of error of the EUT under sufficiently constant ambient conditions (reasonably constant conditions in a normal laboratory environment) at various intdrvals, before, during and after the EUT has been subjected to performance tests.The performance tests shall include the temperature test and, if applicable, the damp heat test. Other performance tests listed in this Annex may be performed.The EUT shall be disconnected from the mains power supply, or battery supply where fitted, two times for at least eight hours during the period of the test. The number of disconnections may be increased if the manufacturer specifies so or at the discretion of the approval authority in the absence of any such specification.In the conduct of this test, the operating instructions for the instrument as supplied by the manufacturer shall be considered.The EUT shall be stabilized at sufficiently constant ambient conditions after switch-on for at least five hours, and at least sixteen hours after the temperature and damp heat tests have been performed. |
| Test severities: | Test duration: Twenty eight days or over the period necessary for the conduct of the performance tests, whichever is less. Time t (days) between tests: 0.5t< 10.Test load: A static test load near maximum capacity (Max); the same test weights shall be used throughout the test. |
| Maximum allowable variation: | The variation in the indication of the test load shall not exceed ½ the absolute value of the mpe for influence factor tests paragraph 2(4) for the test load applied on any of the (n) tests conducted. |
| Number of tests (n): | n≥8. If the test results indicate a trend more than half the permissible variation specified above, conduct additional tests until the trend comes to rest or reverses itself, or until the error exceeds the maximum permissible variation. |
| Precondition. | None required |
| Test equipment: | Verified mass standards. |
| Condition of the EUT: | Adjust EUT as close to zero indication as practicable before each test. |
| Test sequence: | Stabilize all factors at nominal reference conditions. If the instrument is provided with automatic zero-setting it shall not be in operation. Apply the test load(or simulated load) and record the following data:(a) date and time(b) temperature(c) barometric pressure(d) relative humidity(e) test load(f) indication(g) errors(h) changes in test locationand apply all necessary corrections resulting from variations of temperature, pressure, etc., between the various measurements.At the first measurement immediately repeat zeroing and loading four times to determine the average value of error. For the next measurements perform only one, unless either the result is outside the specified tolerance or the range of the five readings of the initial measurement was more than 1 / 10 of the maximum permissible variation.Repeat this test at periodic intervals during and after the conduct of the various performance tests.Allow full recovery of the EUT before any other tests are performed. |
8. Procedure for material tests
| Types of loads [paragraph 5(3)(i) and paragraph 6(2)(a)]: | The materials used as the test load shall be as specified in paragraph 6(2)(a). |
| Mass of test loads and fills [paragraph 6(2)]: | The mass of the test loads and fills shall be as specified in paragraphs 6(2)(a),(b) and (c). |
| Adjustments[paragraph 6(2)(d)]: | The adjustments shall be set as specified in paragraph 6.2(d). |
| Correction devices [paragraph 6(2)(i)]: | Any correction device shall be operated as specified in paragraph 6(2)(i). |
| Number of fills [para 6(3)]: | The number of fills shall be as specified in paragraph 6(3). |
| Concerning paragraph 6(7): | The result of weighing the test fill on the control instrument shall be considered as the conventional true value of the testfill. |
| Concerning paragraph 6(8): | The deviation for automatic weighing used to determine compliance of each fill with the maximum permissible deviation for automatic weighing [paragraph 2(2)] shall be the difference between the conventional true value of the mass of the test fill as defined in paragraph 6(7) and the average value of all the fills in the test. |
| Concerning paragraph 6(9): | The preset value error for automatic weighing used to determine compliance with paragraph 2(3) shall be the difference between the average value of the conventional true value of the mass of the test fills, as defined in para 6(7) and the preset value for the fills. |
Part I
1. General definitions
2. Construction
Note.-In this Part and Part II, the term "device" is applied to any part which uses any means to perform one or more specific functions.3. Metrological characteristics
4. Indications and errors
5. Influences and reference conditions
6. Tests
Part II
1. General
2. Metrological requirements
| Accuracy class | Percentage of the mass of the totalized load | |
| Verification | Inspection | |
| 0.2 | ±0.10% | ±0.2% |
| 0.5 | ±0.25% | ±0.5% |
| 1 | ±0.50% | ±1.0% |
| 2 | ±1.00% | ±2.0% |
| Maximum permissible errors | Load(m) expressed in totalization scale intervals |
| ±0.5dt | 0≤m≤500 |
| ±1.0dt | 500<m≤2000 |
| ±1.5dt | 2000<m≤10000 |
1000. x d, for class 0.2 instruments,
400. x dt for class 0.5 instruments,
200. x d1 for class 1 instruments, and
100. x dt for class 2 instruments.
Example: Maximum capacity = 1000 kgMinimum capacity = 200 kgTotalization scale interval = 0.2 kg (see paragraph 2.4)Accuracy class of instrument = 0.5∑min 400 x 0.2 = 80 kgBut to satisfy the second indent above:∑min≥min = 200 kgTherefore, in this example the minimum value of the minimum totalized load is 200 kg (The values used in this example are not intended to be typical.)3. Technical requirements
| Maximum capacity(Max) | Minimum quantity of standard weights |
| Max≤5t | Max |
| 5t<Max≤25t | 5t |
| 25t<Max≤50t | 20% Max |
| 20t<Max | 10t |
4. Requirements for electronic instruments
Electronic instruments shall comply with the following requirements, in addition to the applicable requirements, of all other clauses.5. Metrological controls
6. Test methods
1. Documentation [Paragraph 5(1)(i)]
Review the documentation that is submitted, including necessary photographs, drawing, diagrams, general software information, relevant technical and functional description of main components, devices, etc., to determine if it is adequate and correct.Consider the operational manual.2. Comparing construct on [paragraph 5(1)(i)]
Examine the various devices of the instrument to ensure compliance with the documentation.3. Initial examination
4. General
5. Test program
6. Metrological performance tests
Metrological performance tests shall be applied to the complete instrument under normal operating conditions, except when the size and/or configuration of the instrument does not lend itself to testing as a unit. In such cases, the separate electronic devices shall be subjected to testing.7. Additional functionality
8. Influence factor and disturbance tests
| Test | Characteristic under test | Conditions applied |
| (i) Static temperature | Influence factor | mpe(*) |
| (ii) Damp heat, steady state | Influence factor | mpe |
| (iii) Mains power supply voltage variation (AC) | Influence factor | mpe |
| (iv) Battery power supply voltage variation (DC) | Influence factor | mpe |
| Environmental phenomena | Test specification |
| Temperature | Reference of 20oCSpecified high for 2 hoursSpecified low for 2 hours5oCReference of 20oC |
| Object of the test: | To verify compliance with the provisions in paragraph 4(3)(iii) under conditions of high humidity and constant temperature. |
| Precondition: | None required. |
| Condition of the EUT: | Normal power supplied and "on" for a time period equal to or greater than the warm-up time specified by the manufacturer. Power is to be "on" for the duration of the test.Adjust the EUT as close to zero indication as practicable prior to the test (if an automatic zero-tracking device is connected, adjust it to a value near zero).The EUT shall not be readjusted at any time during the test. The EUT shall display a recorded total not less than the minimum totalized load, ∑min.The handling of the EUT shall be such that no condensation of water occurs on the EUT. |
| Stabilization: | Three hours at reference temperature and 50% humidity;Two days (48 hours) at the upper limit temperature as specified in paragraph 2(7)(i) |
| Temperature: | Reference temperature of 20oC and at the upper limit as specified in paragraph 2(7)(i). |
| Temperature-humidity sequence: | Reference temperature of 20°C at 50% humidity;The upper limit temperature at 85% humidity;Reference temperature of 20oC at 50% humidity. |
| Number of test cycles: | At least one cycle. |
| Weighing test and test sequence: | After stabilization of EUT at reference temperature and 50% humidity, apply at least five different test loads or simulated loads and record:(a)Date and time;(b)Temperature;(c)Relative humidity;(d)Test load;(e)Indications (as applicable);(f)Errors;(g)Functional performance.Increase the temperature in the chamber to the upper limit and increase the relative humidity to 85%. Maintain the EUT at no load for a period of two days (48 hours). Following the two days, apply at least five test loads and record the data as indicated above. Allow full recover of the EUT before any other tests are performed. |
| Maximum allowable variations: | All errors shall be within the maximum permissible errors specified in Table 2 |
| Environmental phenomena | Test specification |
| Reference voltage | Reference voltage+10% |
| Voltage variation | Reference voltage-15% |
| Reference voltage |
| Object of the test: | To verify compliance with the provisions in paragraph 2(7)(ii) under conditions of voltage variations.Test procedures in brief: |
| Test procedures in brief: | |
| Precondition: | None required. |
| Condition of the EUT: | Normal power supplied and "on" for a time period equal to or greater than the warm-up time specified by the manufacturer. Power is to be "on" for the duration of the test.Adjust the EUT as close to zero indication as practicable prior to the test. If it has an automatic zero-setting function then the instrument should be set to zero after applying each level of voltage.The EUT shall display a recorded total not less than the minimum totalized load, ∑min. |
| Number of test cycles: | At least one cycle. |
| Weighing test: | The EUT shall be tested at no load and with one test load or simulated load between 50% and maximum capacity of theEUT. |
| Test sequence: | Stabilize the power supply at the reference voltage within the defined limits and record.(a) date and time;(b) temperature;(c) relative humidity;.(d) power supply voltage;(e) test loads;(f) indications (as applicable);(g) errors;(h) functional performance.Repeat the test weighing for each of the voltages (nothing the need in certain cases to repeat the test weighing at both ends of the voltage range) and record the indications. |
| Maximum allowable variations: | All functions shall operate as designed.All errors shall be within the maximum permissible errors specified in Table 2. |
| Test method: | Variation in DC power supply. Where the EUT continues to operate below the stated battery voltage, the following test shall be conducted using an equivalent variable DC power source. |
| Object of the test: | To verify compliance with the provisions in paragraph 2(7)(iii) under conditions of varying DC power supply. The requirements shall be met either by use of an equivalent variable DC power source or by allowing the battery voltage to fall by use. |
| Reference to standard: | No reference to international standards can be given at the present time. |
| Test procedures in brief: | The test consists of subjecting the EUT to DC power variations when the former is operating under normal atmospheric conditions with one test load or simulated load between 50% and maximum capacity of the EUT. |
| Test severity: | Supply voltage: lower limit, the voltage at which the EUT clearly ceases to function(or is automatically put out ofservice)+2 % of this voltage. |
| Number of test cycles: | At least one cycle. |
| Conduct of the test: | |
| Precondition: | None required. |
| Test equipment: | Variable DC power source;Calibrated voltmeter;Load cell simulator, if applicable. |
| Condition of the EUT: | Normal power supplied and "on" for a time period equal to or greater than the warm-up time specified by the manufacturer.Adjust the EUT as close to zero indication as practicable prior to the test. If it has an automatic zero-setting function as part of the automatic weighing process, then the instrument should be set to zero after applying each level of voltage. |
| Test sequence: | Stabilize the power supply at nominal battery voltage ± 2% and record the following data at no load and with one load orsimulated load between 50% and maximum capacity of the EUT:(a) date and time;(b) temperature;(c) relative humidity;(d) power supply voltage;(e) test load;(1) indications (as applicable);(g) errors;(h) functional performance.Reduce the power supply to the EUT until the equipment clearly ceases to function and note the voltage. Switch the EUT "off" an increase the power supply voltage to nominal battery voltage ±2 % . Switch the EUT"on" and reduce the power supply voltage to the above noted voltage(out of service voltage) + 2 % of the noted voltage.Record the data indicate above. |
| Maximum allowable variations: | All functions shall operated as designed.All errors shall be within the maximum permissible errors specified in Table 2. |
| Test | Characteristic under test | Conditions applied |
| (i) Voltage dips and short interruptions | Disturbance | sf(*) |
| (ii) Electrical fast transients/burst immunity | Disturbance | sf |
| (iii) Electrostatic discharge | Disturbance | sf |
| (iv) Electromagnetic Susceptibility | Disturbance | sf |
| Environmental phenomena | Test specification |
| Voltage dips and short interruptions | Interruption from reference voltage to zero voltage for one half cycleInterruption from reference voltage to 50% of reference voltage for two half cyclesThese mains voltage interruptions shall be repeated ten times with a time interval of at least 10 seconds |
| Object of the test: | To verify compliance with the provisions in paragraph 4(1)(ii) under conditions of short time mains voltage interruptions and reductions. |
| Test procedures in brief: | |
| Precondition: | None required. |
| Condition of the EUT: | Normal power supplied and "on" for a time period equal to or greater than the warm-up time specified by the manufacturer. Adjust the EUT as close to zero indication as practicable prior to the test. The EUT shall not be readjusted at any time during the test except to reset if a significant fault has been indicated. |
| Number of test cycles: | At least one cycle. |
| Weighing test and test sequence: | Stabilize all factors at nominal reference conditions. Apply one load or simulated load between 50 % and maximum capacity of the EUT and record:(a) date and time;(b) temperature;(c) relative humidity;(d) power supply voltage;(e) test load;(f) indications (as applicable);(g) errors;(h) functional performance.Interrupt the power supply to zero voltage for a period equal to one half cycle and conduct the test. During interruption observe the effect on the EUT an record as appropriate.Reduce the power supply to 50% of nominal voltage for a period equal to two half cycles and conduct the test. Duringreductions observe the effect on the EUT and record, as appropriate. |
| Maximum-allowable variations: | The difference between the weight indication due to the disturbance and the indication without the disturbance and the indication without the disturbance either shall not exceed the values given in paragraph 4(2)(v) of part I, or the EUT shall detect and act upon a significant fault. |
| Environmental phenomena | Test specification |
| Fast transient common mode | 0.5kv(peak)5/50ns T1/Th5kHz rep. frequency |
| Environmental phenomena | Test specification |
| Fast transient common mode | 0.5kv(peak)5/50ns T1/Th5kHz rep. frequency |
| Environmental phenomena | Test specification |
| Fast transient common mode | 0.5kv(peak)5/50 ns T1/Th5 kHz rep. frequency |
| Object of the test: | To verify compliance with the provisions in paragraph 4(1)(ii) under conditions where fast transients are superimposed on the mains voltage. |
| Test procedures in brief: | |
| Precondition: | None required. |
| Condition of the EUT: | Normal power supplied and "on" for a time period equal to or greater than the warm-up time specified by the manufacturer.Adjust the EUT as close to zero indication as practicable prior to the test. The EUT shall not be readjusted at any time during the test except to reset if a significant fault has been indicated. |
| Stabilization: | Before any test stabilize the EUT under constant environmental conditions. |
| Weighing test: | Stabilize all factors at nominal reference conditions. Apply one load or simulated load between 50% and maximum capacity of the EUT and record the following with and without the transients:(a)Date and time;(b)Temperature;(c)Relative humidity;(d)Test load;(e)Indications (as applicable);(f)Errors;(g)Functional performance. |
| Maximum allowable variations: | The difference between the weight indication due to the disturbance and the indication without the disturbance either shall not exceed the value given in paragraph 4(2)(v) of part I or the instrument shall detect and act upon a significant fault. |
| Environmental phenomena | Test specification |
| Electrostatic discharge | 8 kv discharge 6 kv contact discharge |
| Object of the test: | To verify compliance with the provisions in paragraph 4(1)(ii) under conditions where electrostatic discharges are applied. |
| Test procedures in brief: | |
| Precondition: | None required. |
| Condition of the EUT: | Normal power supplied and "on" for a time period equal to or greater than the warm-up time specified by the manufacturer.Adjust the EUT as close to zero indication as practicable prior to the test. The EUT shall not be readjusted at any time during the test except to reset if a significant fault has been indicated. |
| Stabilization: | Before any test stabilize the EUT under constant environmental conditions. |
| Weighing test: | Stabilize all factors at nominal reference conditions. Apply one load or simulated load between 50% and maximum capacity of the EUT and record the following with and without electrostatic discharge:(a)Date and time;(b)Temperature;(c)Relative humidity;(d)Test load;(e)Indications (as applicable);(f)Errors(g)Functional performance. |
| Maximum allowable variations: | The difference between the weight indication due to the disturbance and the indication without the disturbance either shall not exceed the value given in paragraph 4(2)(v) of Part I or the instrument shall detect and act upon a significant fault. |
9. Span stability test [paragraph 4(4)(iii)]
SUMMARY OF TEST| Test | Characteristic under test | Condition applied |
| Span stability | Stability | 1/2 absolute mpe(*) |
| Test method: | Span stability. |
| Object of test: | To verify compliance with the provisions in paragraph 4(4)(iii) after the EUT has been subjected to the performance tests. |
| Reference to standard: | No reference to international standards can be given at the present time. |
| Test procedures in brief: | The test consists of observing the variations of the error of the EUT or simulator under sufficiently constant ambientconditions(reasonable constant conditions in a normal laboratory environment) at various intervals: before, during, and after the EUT has been subjected to performance tests.The performance tests shall include the temperature test and, if applicable, the damp heat test; an endurance test shall not be included. Other performance tests listed in this Annex may be performed.The EUT shall be disconnected twice from the mains power supply (or battery supply where fitted) for at least eight hours during the period of the test. The number of disconnections may be increased if so specified by the manufacturer or at the discretion of the approval authority in the absence of any specification.In the conduct of this test, the operating instructions for the instrument as supplied by the manufacturer shall be considered.The EUT shall be stabilized at sufficiently constant ambient conditions after switch-on for at least five hours, and at least sixteen hours after the temperature and damp heat tests have been performed. |
| Test severities: | Test duration: Twenty eight days or the time period necessary to conduct the performance tests, whichever is less.Time(t) between tests (days):0.5≤t≤10.Test load: Near maximum capacity (Max); the same test weights shall be used throughout the test. |
| Maximum allowable variations: | The variation in the errors of indication shall not exceed half the absolute value of the maximum permissible error in paragraph 2(2)(ii) Table 2 for the test load applied on any of the n measurements. |
| Number of tests (n): | At least eight except where the difference of the results indicates a trend more than half the allowable variation specified, the measurements shall be continued until the trend comes to rest or reverses itself, or until the error exceeds the maximum allowable variation. |
| Precondition: | None required. |
| Test equipment: | Verified mass standards or simulated load. |
| Condition of the EUT: | Normal power supplied and "on" for a time period equal to or greater than the warm-up time specified by the manufacturer. |
| Test sequence: | Stabilize all factors at nominal reference conditions.Adjust the EUT as close to zero as possible.Automatic zero-tracking shall be made inoperative and automatic built-in span adjustment device shall be made operative.Initial measurementDetermine the span error using the following method:Determine the initial zero error (E0)If necessary disable any automatic zero-setting or zero-tracking devices by placing a "zero weight" of for example 10 times the scale interval on the load receptor. Note the indication at zero (I0).Either by use of an indicator with a suitable higher resolution scale interval or using the change point weight method specified in paragraph 4(2)(ii) of this Annex (noting the total addition change point weight ∆L0) determine and record the initial zero error (E0).Determine the error at near Max capacity (E1)Carefully remove the change point weights (if used) and apply the test load (or simulated load) and note the indication (I1).Either by use of an indicator with a suitable higher resolution scale interval or using the change point weight method specified in paragraph 4(2)(ii) of this Annex (nothing the total addition change point weight∆L) determine and record the error at near Max capacity (EL)Record:(a) Date and time;(b) Temperature;(c) Barometric pressure;(d) Relative humidity;(e) Value of 0.1 d;(f) Test load;(g) Total of added change point weights at zero load ∆L0;(h) Total of added change point weights at test load ∆L;(i) The following indications:· indication at zero (I0);· indication of test load (IL);(j) calculate:· initial zero error E0;· error at test load (EL);(k) change in locationand apply all necessary corrections resulting from variations of temperature, pressure, etc., between the various measurements.Immediately repeat steps 1 and 2 four more times and determine and record the average value of the error for the five tests.Subsequent measurementsAfter observing the time between measurements requirement repeat the test sequence 1 to 2 once recording the data above unless:(a) either the result is outside the maximum allowable variation; or(b) the range of the five readings of the initial measurement is more than 0.1 d, in which case continue four more times repeating steps 1 and 2 recording the data above and determine and record the average value of the error of the five tests.The measurements shall continue until there are at least 8 measurements except where the difference of the results indicates a trend more than half the allowable variation specified, the measurements shall be continued until the trend comes to rest or reverses itself, or until the error exceeds the maximum allowable variation.] |
VIII
SPECIFICATIONS FOR MEASURING INSTRUMENTS(See rule 13)General requirementsPart II
VOLUMETRIC CONTAINER FILLING MACHINES1. Description
1.
, 2, 5,10,15, 20, 50, 100 and 200 litres.2. General requirements
3. Tests
4. Maximum permissible error
| Capacity | Error in excess only |
| 10 litres and above | 0.1 percent |
| Below 10 litres | 0.2 percent |
5. Sealing
The volumetric container filling machines shall be provided by the manufacturer with a plug/plugs or stud/studs of such soft metal to receive the stamp or seal of the verifying authority. Such plug/plugs or stud/studs shall be provided in a conspicuous part of the machine and shall be made in such a manner as to prevent its removal without obliterating the seal/seals. The adjusting device also shall be properly sealed so as to avoid any tampering of capacity.Part III
BULK METERS1. General
2. Definitions
3. Types and construction
4. Meter installation
The installation of the bulk meter has a direct bearing upon its operation and such characteristics as the rate of flow and accuracy may be seriously affected if it is not correctly installed. It is, therefore, essential that where possible the layout be based on the following:5. Tests
6. Maximum permissible error
7. Marking
8. Sealing
Every bulk meter shall be provided with a suitable sealing arrangement to receive the stamp or seal of the verification authority.[PART IV] [ Substituted by G.S.R. 238(E), dated 15-4-2005 (w.e.f. 13-10-2005).]WATER METERS (DOMESTIC TYPE)1. General
This Part applies to water meters intended for metering potable cold water with threaded end connections and of nominal sizes upto and including 50 mm. The part applies to both wet dial and dry dial meters.2. Terminology
1. Nominal pressure
The internal pressure, expressed in Mpa corresponding to the maximum permissible working pressure.2. Flow rate
The volume of water passing through the water meter per unit of time; the volume being expressed in litre and the time in hours, minutes or seconds.3. Flow delivered
The total volume of water which has passed through meter in a given time.4. Maximum flow Rate, Qmax
The highest flow rate at which the meter can function over limited periods without damage and without exceeding the maximum permissible errors and the maximum permissible value for loss of pressures, expressed in kl/h.5. Nominal flow rate, Qn
Half the maximum flow rate, Q max.; expressed in kl/h. At the nominal flow rate Qn, the meter should be able to function in normal use, i.e., in continuous and intermittent operating conditions, without exceeding the maximum permissible error.6. Minimum flow rate, Q min
The lowest flow rate at which the meter is required to give indications within the prescribed maximum permissible error. It is determined in terms of Qn7. Flow rate range
The range limited by the maximum and the minimum flow rates (Q max and Q min). The range is divided into two zones called upper and lower zones, separated by the transitional flow rate Qt.8. Transitional flow rate, Qt
The flow rate which divides the upper and lower regions of the flow range and the rate at which the maximum permissible errors become discontinuous.9. Pressure loss
The pressure loss caused due to the presence of the water meter in the pipe line.10. Water Meter-Dry Dial
Meter in which the counter mechanism is isolated from water flowing through the meter.11. Water Meter, Wet-Dial Type
Meter in which the complete counter unit is in contact with water flowing through the meter.3. Nominal sizes
Water meters shall be of the following nominal sizes; 15 mm, 20 mm, 25 mm, 40 mm and 50 mm.The nominal size of the water meter shall be denoted by the nominal bore of its end connections.4. Classes of water meters
The water meters are classified as Class A and Class B based on the maximum verification scale interval and metrological characteristics.5. Materials and manufacture
6. Indicating device
| Meter Size | Maximum Value of Scale Interval in litre | |
| Class A | Class B | |
| 15 | 0.2 | 0.2 |
| 20 | 0.5 | 0.2 |
| 25 | 1.0 | 0.5 |
| 40 | 2.0 | 1.0 |
| 50 | 2.0 | 2.0 |
7. Technical characteristics
8. Metrological characteristics
| Meter Size | Nominal Flow rate Qtkl/h | Minimum Starting Flow rate Qmin1 /h | Transitional Flow rate Qnin 1/h for | Maximum Flow rate Qmaxkl/h | ||
| Class A | Class B | Class A | Class B | |||
| (1) | (2) | (3) | (4) | (5) | (6) | (7) |
| 15 | 1.5 | 60 | 30 | 150 | 120 | 3 |
| 20 | 2.5 | 100 | 50 | 250 | 200 | 5 |
| 25 | 3.5 | 140 | 70 | 350 | 280 | 20 |
| 40 | 10 | 400 | 200 | 1000 | 800 | 20 |
| 50 | 15 | 600 | 300 | 1500 | 1200 | 30 |
9. Marking
Each water meter shall be marked with the following information:-10. Sealing
Sealing.- Sealing holes shall be provided with a suitable sealing arrangement to receive the seal of the verification authority and the meter shall be sealed in such a manner as to render it impossible to obtain access to the measuring unit without breaking the seals. The sealing wire shall be rust-proof.ANNEXURE 'A'FLOW TESTS1. Metering accuracy test
| Percent error = | Vi-Vc | X 100 |
| Vc |
2. Loss of pressure test at Qn and Qmax
This test may be carried out concurrently with the metering accuracy test at Qn and QmaxThe meter shall be tested for loss of pressure within the meter at nominal flow rate Qn and maximum flow rate Qmax. The loss of pressure should not exceed 0.025 Mpa and 0.1 Mpa respectively at the above two stages. (For value of Qn and Qmax).The pressure loss within the meter may be measured with the help of manometer or differential pressure gauge or pressure gauges provided each at up-stream and down-stream.While the meter(s) are being tested for accuracy at Qn and Qmax the readings between the up-stream and down-stream in the pressure gauges P1 and P2 or manometers shall be taken for the purpose of computing the value of loss of pressure within the meter. In case one meter is being tested the difference between the pressure gauge reading of P1 and P2 or the differential pressure shown by the differential pressure gauge/manometer shall be the loss of pressure within the meter.In case loss of pressure is being measured for more than one meter at a time, the difference between the readings of P1 and P2 be divided by number of meters to obtain the loss of pressure in an individual meter. This, however, shall contain the line loss(es) contributed by the connecting pieces between the two meters. For an accurate approach line loss(es) may be measured by joining the up and down-stream spacers/pipe faces together in the absence of the meter/s (carefully avoiding protrusion into the pipe bore or misalignment of the two faces), and measuring the pipe pressure loss/line losses of the measuring section for each test at appropriate flow rates.While computing loss of pressure, across 1 or N number of meters tested in series, the loss registered by spacers/pipes in line losses be subtracted from the total value of pressure loss registered by difference between the readings of pressure gauge at up-stream and down-stream to obtain the value of loss of pressure across 1 or N number of meters.3. Pressure tightness test
The meter(s) shall be subjected to hydrostatic continuous water pressure of-4. Test equipment for temperature suitability test
For carrying out the temperature suitability test, a container of appropriate dimensions fitted with heating elements, and temperature control device to maintain temperature at 45°C ± 1°C shall be used.5. Temperature suitability test
As a general rule, at least one meter shall be put to temperature suitability test every three months and records maintained. The meter for test may be selected at random.The meter which has qualified the technical and metrological characteristics, shall be taken and placed in the test equipment meant for temperature suitability test maintained at 45°C ± 1°C. It should be kept there for 10 hours. While the meter is immersed in water dust cap or device stopping entry of water inside wet chamber of the meter be removed.After 10 hours of continuous immersion at 45°C ± 1°C the meter shall be taken out and kept for some time in the open to acclimatize it at the ambient temperature. It shall then be rested again for flow test and pressure tightness test. They shall be deemed satisfactory if their performance after the temperature suitability test satisfies the above requirements.Note.-In case any material/design changes are carried out, this test shall be performed and checked for satisfactory performance before introducing the change(s) on mass scale production.6. Test equipment for life test
The test equipment shall consist of the following:7. Life test (accelerated endurance test)
Two unopened meters in each size and class, selected at random shall be subjected to the life test every six months, in accordance with the requirements specified in Table.Note.-Meter(s) may be tested individually or in series.TABLE 1LIFE TEST REQUIREMENTS| Nominal Flow Rate | Test Flow Rate | Type of Test | No. of Interruptions | Duration of Pauses | Period of Operation at Test | Duration of Start up and Run Down |
| QnK1/h | s | s | ||||
| (1) | (2) | (3) | (4) | (5) | (6) | (7) |
| ≤10 | Qn | Discontinuous | 100000 | 15 | 15s | 0.15(Qn)*With a minimumOf 1s |
| 2Qn | Continuous | - | - | 100h | - | |
| 10 | Qn | Continuous | - | - | 800h | - |
| 2Qn | Continuous | - | - | 200h | - |
Part 1
TERMINOLOGY1. Measuring system and its constituents:
2. Specific types of measuring systems:
3. Metrological characteristics:
4. Test conditions
5. Electronic or electrical equipment
| PART VMETERS FOR LIQUIDS (OTHER THAN WATER)1. General(a) This Part deals with meters for liquids (other than water) in which the liqu id being measured causes the displacement of movable walls defining the limits of the measuring chambers which allow continuous measurement of any volume of liquid.(b) The expression "meter" designated an instrument co nsisting only of a "measuring device" and an "indicating device".(c) Auxiliary devices for meters, as well as measuring assemblies are the subject of another part.2. Definitions(a) Minimum delivery-Minimum delivery is the smallest volume of liquid authorised to be measured through the meter.(b) Cyclic Volume-Cyclic volume is the volume of liquid corresponding to one cycle of operation of the measuring device i.e. the sequence of movements at the completion of which all the internal moving parts of the measuring device return for the first time to the same position as the beginning of the operation.(c) Periodic variation-Periodic variation is the maximum difference which occurs, during one cycle of operation between the volume cleared by the displacement of the measuring parts and the corresponding volume recorded by the indicator, the latter being connected without play, or slip to the measuring device in such a manner that it indicates at the completion of the cycle, and for that cycle, a volume equal to the cyclic volume. This variation may be reduced by the introduction of an appropriate correcting device.(d) Primary element of an indicating device-In an indicating device having several elements, that element which carries the scale ha ving the minimum graduation is called "the primary element".3. Indicating device(a) General Provisions(i) The indicating device, which may have one or more moving elements, shall indicate the measured volumes in cubic centimetres or millilitres, in cubic decimetres or litres, or in cubic metres.(ii) The reading shall be indicated clearly, quickly and unambiguously. If the device has several elements, the assembly shall be carried out in such a manner that the final reading may be obtained by simple juxtaposition of the readings of 'different indicating elements.(iii) The minimum graduation of the primary element shall be 1x10nor 2x10nor 5x10ntimes the units of volume.(iv) The maximum capacity of the indicator shall be 1 x 10nor 2 x 10nor 5 x 10ntimes the units of volume.(v) When the graduation of an element is completely visible the value of one revolution of this element shall be l0n times the units of volume. This principle does not, however, apply to the element which corresponds to the maximum capacity of the indicator.(vi) On a device having several elements, the value of each revolution of the moving parts of the elements, the graduation of which is totally visible, shall be equal to the value of the minimum graduation of succeeding elements.(b) Method of indication(i) An element of the indicating device may be analogue or digital, but when elements other than the primary, have only a portion of their scale visible through windows, those elements shall have digital movement (the primary elements may, however, be analogue or digital).(ii) An element with analogue movement shall have a graduated scale and a pointer to indicate the measured volume at any position of stop.(iii) When that element is in the form of fixed circular scale and rotating needle indicator, the director of the rotation of the needle shall be clockwise.(iv) In an indicating device having several elements, the advancement of figures of an element with digital movement, other than the primary, shall stop when the preceding element indicates zero. This advancement shall occur when the preceding element makes a fractional rotation not greater than one tenth.(v) If the indication is given in aligned numbers and the movement of the primarly element is digital, the presence of one or more zeroes fixed to the right of that element is authorised.(c) Graduation(i) Graduation lines on scales shall be of uniform thickness throughout their length. Their thickness shall be not more than quarter of the length of the graduation.(ii) The graduations representing 1x10n2x10nor 5x10nof the units of volume shall be differentiated by their length.(iii) The length of the graduation as actually marked or optically magnified, shall be not less than 4 mm.(iv) The height of the numerals, as actually marked or optically magnified, shall be not less than 4 mm.(v) If the primary element has analogue movement and has a moving scale of which only a portion is visible through the window, the width of such window, in the direction of the scale, shall be not less than 1.5 times the distance between two consecutive numbered graduations.Note:The letter 'n' appearing in this part symbolises a whole number, positive, negative or zero.(d) Operation of mechanical indicator-The operation of the indicative dev ice by the measuring device shall be positive and reliable the intermediary of a permanent magnetic device.4. Adj sting devices(a) The meters shall have an adjusting device to change the ratio between the indicated volume and the actual volume of liquid which has passed through the measuring device.(b) When the adjusting device changes this ratio in a discontinuous manner, the consecutive values of this ratio shall not differ by more than 0.002.(c) Adjustment by means of a by-pass pipe on the mesuring device is prohibited.5. Special provisions relating to minimum delivery(a) Minimum delivery shall be determined in such a manner that the maximum permissible error on that delivery (see 8 a and 8b) is more than or equal to each of the following values:(i) (A) if the primary element has analogue movement: the largest of the volumes corresponding to 2 mm of its scale or to 1/5 of the value of the graduation on that scale.(B) if the primary element has digital movement : volume corresponding to two units of graduation :(ii) twice the periodic variation;(iii) the volume which, in normal usage, corresponds to the play or slip in the transmission of the motion of the measuring device to the primary element of the indicating device.(b) The minimum delivery should take into account, where necessary, the influence of auxiliary devices of the meauring assembly in accordance with the provisions of the Part relating to auxilary devices and measuring assemblies.(c) The value of the minimum delivery, determined by the application of the above rules, shall be of the form 1x10n2x10nor 5x10nof units of volume.6. Maximum flow and minimim flow(a) The values of maximum and minimum rates of flow of a meter shall be fixed in the light of the results of the model approval tests.(b) The ratiobetween the maximum and the minimum rates of flow shall be not greater than 10 for ordinary meter, and not greater than 5 for meters for liquified gas.(c) The meter shall be capable of operating in the vicinity of its maximum rate of flow for the period determined in the light ot the results obtained in the model approval tests, without noticeably changing any of its meteorological qualities:7. Effect of nature of liquid, temperature and pressure(a) The certificate of model approval of a meter shall indicate and fix:(i) the liquid or liquids for the measurement of whcih the meter shall be used,(ii) temperature limits of the liquid measured if the limits are less than −10°C or more than + 50°C(iii) the maximum operating pressure of the instrument.(b) The models of meters submitted for approval shall be such that the variations of their errors due to:(i) the maximum variations of the characteristics of liquids to be measured,(ii) the maximum variations of the temperature of the liquids to be measured.(iii) the maximum variations in operating pressure, (these variations remaining within the limits fixed by the decision of approval referred to in 7 (a) above), shall not exceed, for each of these factors, half the values of the maximum permissible errors specified in 8 (a) and 8 (b) below.8. Maximum permissible errors on verification of measuring assembly(a) Under the normal conditions of use the maximum permissible errors on the verification of the measuring assembly shall be as given below:Quantities measured#Maximum permissible errors.{| | |||||
| From 0.02 to 0.1 litre| ± 2 ml|- | From 0.1 to 0.2 litre| ± 2 per cent of the quantity measured.|- | From 0.2 to 0.4 litre| ±4 ml|- | From 0.4 to 1 litre| ± 1 per cent of the quantity measured|- | From 1 to 2 litre| ± 10 ml|- | 2 litres or more| ± 0.5 per cent of the quantity measured. |
9. Markings
10. TestEvery meter shall be tested for its metering accuracy and shall conform to the requirements specified in paragraph 8.
11. Sealing
Part 2
MEASURING SYSTEMS FOR LIQUIDS OTHER THAN WATER1. Field of application
2. General requirements
| Nominal Flow Rate | Test Flow Rate | Type of Test | No. of Interruptions | Duration of Pauses | Period of Operation at Test | Duration of Start up and Run Down |
| QnK1/h | s | s | ||||
| (1) | (2) | (3) | (4) | (5) | (6) | (7) |
| ≤10 | Qn | Discontinuous | 100000 | 15 | 15s | 0.15(Qn)*With a minimumOf 1s |
| 2Qn | Continuous | - | - | 100h | - | |
| 10 | Qn | Continuous | - | - | 800h | - |
| 2Qn | Continuous | - | - | 200h | - |
| Accuracy classes | ||||
| 0.3 | 0.5 | 1.0 | 1.5 | |
| A | 0.3% | 0.5% | 1.0% | 1.5% |
| B | 0.2% | 0.3% | 0.6% | 1.0% |
| Measured quantity | Maximum permissible errors |
| from 1 to 2 L | value fixed in Table 2, applied to 2 L |
| from 0.4 to 1 L | twice the value fixed in Table 2 |
| 0.2 to 0.4 L | twice the value fixed in Table 2, applied to 0.4 L |
| quadruple the value fixed in Table-2 | |
| from 0.1 to 0.2 L | quadruple the value fixed in Table 2, applied to 0.1 L |
| less than 0.1 L |
| Maximum permissible errors on measuring | Accuracy classes of the measuring system | ||
| 0.3 | 0.5 | 1.0 | 1.5 |
| Temperature | ±0.30C | ±0.50C | |
| Pressure | Less than 1 MPa : ±50%between 1 and 4 Mpa: ± 5%more than Mpa : ±200 kPa | ||
| Density | ±1kg/m3 | ±2kg/m2 |
3. Requirements for meters and ancillary devices of a measuring system
4. Measuring systems equipped with electronic devices
4.
5. Requirements specific to certain types of measuring systems
| kmin= knom-0.05knomand kmax= knom+0.05knom | |||
| Examples: | |||
| Designation | 3:1 | 1:1 | 1:3 |
| knom | 0.333 | 1.00 | 3.00 |
| kmin | 0.316 | 0.95 | 2.85 |
| kmax | 0.350 | 1.05 | 3.15 |
| T-Tnom | /Tnom≤0.05 |
| T-Tnom | ≤0.2% |
6. Metrological control
When a test is conducted, the expanded uncertainty of the determination of errors on indications of volume or mass shall be less than one-fifth of the maximum permissible error applicable for that test on pattern approval and one-third of the maximum permissible error applicable for that test on other verifications.3. Subsequent verification
2. Severity levels
For each performance test, typical test conditions are indicated: they correspond to the climatic and mechanical environment conditions to which measuring systems are usually exposed.Measuring systems are divided into three classes according to climatic and mechanical environmental conditions: class B for fixed instruments installed in a building, class C for fixed instruments installed outdoors, class I for mobile instruments, in particular measuring systems on trucks.However; the applicant for pattern approval may indicate specific environmental conditions in the documentation supplied to the metrology service, based on the intended use of the instrument. In this case, the metrology service carries out performance tests at severity levels corresponding to these environmental conditions. If pattern approval is granted, the data plate shall indicate the corresponding limits of use. Manufacturers shall inform potential users of the conditions of use for which the instrument is approved. The metrology service shall verify that the conditions of use are met.3. Reference conditions.
Ambient temperature: 20°C ± 5°CRelative humidity: 60% ± 15 %Atmospheric pressure: 86 kPa to 106kPaPower voltage : Nominal voltage (Vnom)Power frequency : Nominal frequency (Fnom)During each test, the temperature and relative humidity shall not vary by more than 5°C or 10 % respectively within the reference range.4. Performance tests
The following tests can be carried out in any order.| | Test | Nature of the influence quantity | Severity level for the class | |||
| B | C | 1 | |||
| 1. | Dry heat | Influence factor | 2 | 3 | 3 |
| 2. | Cold | Influence factor | 2 | 3 | 3 |
| 3. | Damp heat, cyclic | Influence factor | 1 | 2 | 2 |
| 4. | Vibration(sinusoidal) | Influence factor | - | - | 3 |
| 5. | Power voltage variation | Influence factor | 1 | 1 | 1 |
| 6. | Short time power reductions | Disturbance | 1a& b | 1a& 1b | 1a& 1b |
| 7. | Bursts | Disturbance | 2 | 2 | 2 |
| 8. | Electrostatic discharge | Disturbance | 1 | 1 | 1 |
| 9. | Electromagnetic susceptibility | Disturbance | 2, 5,7 | 2, 5,7 | 2, 5,7 |
| 10. | Disturbances on d.c. voltage powered equipment |
| (1) Dry heat | |
| Test method: | Dry heat (non condensing) |
| Object of the test: | To verify compliance with the provisions in paragraph 4(1)(i) under conditions of high temperature. |
| Test procedure | The test consists of exposure of the EUT to a temperature of 55°C (classes C or I) or 40°C (class B) under "free air" conditions for a 2-hour period after the EUT has reached temperature stability. The EUT shall be tested at at least one flow rate (or simulated flowrate); at the reference temperature 20°C following conditioning, at the temperature of 55°C or 40°C, 2 hours after temperature stabilization,after recovery of the EUT at the reference temperature of 20°C. |
| Test severities: | (1) Temperature: severity level 2:400C severity levl 3:550C(2) Duration: 2 hours |
| Number of test cycles: | One cycle |
| Maximum allowable variations | All functions shall operate as designed.All errors shall be within the maximum permissible errors. |
| (2) Cold | |
| Test method: | Cold |
| Object of the test: | To verify compliance with the provisions in paragraph 4(1)(i) under conditions of low temperature. |
| Test procedure in brief: | The test consists of exposure of EUT to a temperature of -250C(classes C or I) or - 100C (class B) under "free air" conditions for a 2-hour period after the EUT has reached temperature stability. The EUT shall be tested at at least one flow rate (or simulate flow rate):at the reference temperature of 200C following conditioning, at a temperature of - 250C or - 100C, 2 hours after temperature stabilization,after recovery of the EUT at the reference temperature of 200C |
| Test severities: | (1) Temperature: severity level 2:-100C severity level 3:-250C(2) Duration: 2 hours |
| Number of test cycles: | One cycle |
| Maximum allowable variations: | All functions shall operate as designed.All errors shall be within the maximum permissible errors. |
| (3) Damp heat, cyclic | |
| Test method: | Damp heat, cyclic (condensing) |
| Object of the test: | To verify compliance with the provisions in 4.1.1 under conditions of high humidity when combined with cyclic temperature changes. |
| Test procedure in brief: | The test consists of exposure of the EUT to cyclic temperature variations between, 250C and the upper temperature of 550C(classes C or I) or 400C (class B), maintaining the relative humidity above 95% during the temperature changes and during the phases at low temperature, and at 93% at the upper during the temperature rise. Standard stabilizing period before and recovery after the cyclic exposure are indicated in IEC Publication 68-2-30. The power supply is not on when the influence factor is applied. |
| Test severities: | (1) Upper temperature: severity level 1:400C severity level 2:550C(2) Humidity:>93%(3) Duration: 24 hours |
| Number of test cycles: | Two cycles |
| Maximum allowable variations | After the application of the influence factor and recovery: all functions shall operate as designed and all errors shall be within the maximum permissible errors. |
| (4) Vibration | |
| Test method | Sinusoidal vibration |
| Object of the test: | To verify compliance with the provisions in paragraph 4(1)(i) under conditions of sinusoidal vibration.This test should normally apply to mobile measuring systems only. |
| Test procedure in bried: | The EUT shall be tested by sweeping the frequency in the specified frequency range, at 1 octave/minute, at the specified acceleration level with a specified number of sweep cycles per axes. The EUT shall be tested in its three, mutually perpendicular main axes, mounted on a rigid fixture by its normal mounting means. It shall normally be mounted so that the gravitational force acts in the same directions as it would in normal use.The instrument is non-operational when the influence factor is applied. |
| Test severities: | (1) Frequency range: 10-150Hz(2) Max. acceleration level: 20m.s-2 |
| Number of test cycles: | 20 sweep cycles per axis |
| Maximum allowable variations: | After the application of the influence factor and recovery: all functions shall operate as designed and all errors shall be within the maximum permissible errors. |
| (5) Power voltage variation | |
| Test method: | Variation in a.c. mains power supply (single phase) |
| Object of the test: | To verify compliance with the provisions in paragraph 4(1)(i) under conditions of varying a.c. mains power supply. |
| Test procedure in brief: | The test consists of exposure of the EUT to power voltage variations, while the EUT is operating under normal atmosphericconditions. |
| Test severities: | Mains voltage: upper limit: Vnom+ 10 %lower limit: Vnom-15 % |
| Number of test cycles: | One cycle |
| Maximum allowable variations: | All functions shall operate as designed.All errors shall be within the maximum permissible errors. |
| (6) Short time power reduction | |
| Test method: | Short time interruptions and reductions in mains voltage |
| Object of the test: | To verify compliance with the provisions in paragraph 4(1)(i) under conditions of short time mains voltage interruptions and reductions. |
| Test procedure in brief: | The test consists of subjecting the EUT to voltage interruptions from nominal voltage to zero voltage for a duration equal to half a cycle of line frequency, and reductions from nominal voltage to 50% of nominal for a duration equal to one cycle of line frequency. The mains voltage interruptions and reductions shall be repeated ten times with a time interval of at least ten seconds. |
| Test severities: | 100%voltage interruption for a period equal to half a cycle. 50% voltage reduction for a period equal to one cycle. |
| Number of test cycles: | At least ten interruptions and ten reductions, each with a minimum of ten seconds between tests.The interruptions and reductions are repeated throughout the time necessary to perform the whole test; for this reason, more than ten interruptions and reductions may be necessary. |
| Maximum allowable variations: | (a) For interruptible measuring systems, either the difference between the volume indication during the test and the indication under reference conditions shall not exceed the values given in paragraph 3(12) part-I or the measuring system shall detect and act upon a significant fault, in compliance with paragraph 4(3)(i).(b) For non-interruptible measuring systems, the difference between the volume indication during the test and the indication under reference conditions shall not exceed the values given in paragraph 3(12) part-I |
| (7) Bursts | |
| Test method: | Electrical bursts |
| Object of the test: | To verify compliance with the provisions in paragraph 4(1)(i) under conditions where electrical bursts are superimposed on the mains voltage. |
| Test procedure in brief: | The test consists of subjecting the EUT to bursts of double exponential waveform transient voltages. Each spike shall have a rise time of 5 ns and a half amplitude duration of 50 ns. The burst length shall be 15 ms, the bursts period (repetition time interval) shall be 300 ms. All bursts shall be applied during the same measurement or simulated measurement in symmetrical mode and asymmetrical mode. |
| Test severities: | Amplitude(peak value) 1000 V |
| Number of test cycles: | At least ten positive and ten negative randomly phased bursts shall be applied at 1000 V.The bursts are applied during all the time necessary to perform the test; to that purpose more bursts than indicated above may be necessary. |
| Maximum allowable variations: | (a) For interruptible measuring systems, either the difference between the volume indication during the test and the indication under reference conditions shall not exceed the values given in paragraph 3(12) part-I or the measuring system shall detect and act upon a significant fault, in compliance with paragraph 4(3)(i),(b) For non-interruptible measuring systems, the difference between the volume indication during the test and the indication under reference conditions shall not exceed the values given in paragraph 3(12) part-I. |
| (8) Electrostatic discharge | |
| Test method: | Electrostatic discharge (ESD) |
| Object of the test: | To verify compliance with the provisions in paragraph 4(1)(i) under conditions of direct and indirect electrostatic discharges. |
| Test procedure in brief: | A capacitor of 150 pFis charged by a suitable DC voltage source.The capacitor is then discharged through the EUT by connecting one terminal to ground (chassis) and the other via 330 ohms to surfaces which are normally accessible to the operator.The test includes the paint penetration method, if appropriate. For direct discharges the air discharge shall be used where the contact discharge method cannot be applied. |
| Test severities: | 8 kv for air discharges6kv for contact discharges |
| Number of test cycles | At each test point, at least ten direct discharges shall be applied at intervals of at least ten seconds between discharges, during the same measurement or simulated measurement. As for indirect discharges, a total of ten discharges shall be applied on the horizontal coupling plane, and a total of ten discharges for the various positions of the vertical coupling plane. |
| Maximum allowable variations | (a) For interruptible measuring systems, either the difference between the volume indication during the test and the indication under reference conditions shall not exceed the values given in paragraph 3(12) part-I, or the measuring system shall detect and act upon a significant fault, in compliance with paragraph 4(3)(i).(b) For non-interruptible measuring systems, the difference between the volume indication during the test and the indication under reference conditions shall not exceed the values given in paragraph 3(12) of part-I |
| (9) Electromagnetic susceptibility | |
| Test method: | Electromagnetic fields (radiated) |
| Object of the test: | To verify compliance with the provisions in paragraph 4(1)(i) under conditions of electromagnetic fields. |
| Test procedure in brief: | The EUT shall be exposed to electromagnetic field strength as specified by the severity level.The field strength can be generated in various ways: the strip line is used at low frequencies below 30 MHz (or in some cases 150 MHz) for small EUT's; the long wire is used at low frequencies (below 30 MHz) for larger EUT's;dipole antennas or antennas with circular polarization placed 1 m from the EUT are used at high frequencies.The specified field strength shall be established prior to the actual testing(without EUT in the field)The field shal be generated in two orthogonal polarizations and the frequency range shall be scanned slowly. If antennas with circular polarization, i.e., log-spiral or helical antennas are used to generate the electromagnetic field, a change in the position of the antennas is not required.When the test is carried out in a shielded enclosure to comply with international laws prohibiting interference to radio communications, care should be taken to handle reflections from the walls. Anechoic shielding may be necessary. |
| Frequency range Field strength | 26-500 MHz3V/m | 500-1000 MHz1 V/m |
| Modulation | 80% AM, 1kHz sine wave |
2. Tests on gas elimination devices forming part of a measuring system during pattern approval
The tests are carried out with a proving tank of the capacity specified in Annexure B, paragraph 1(1) or any appropriate standard.3. Tests on gas elimination devices forming part of a measuring system during verification
The gas elimination devices are tested without it being necessary to verify that the maximum permissible errors for the individual units are complied with.| |- | | |
Part VI
VOLUMETRIC CONTAINER TYPE LIQUID MEASURING DEVICE1. General
The volumetric container type liquid measuring device consists of a bucket, a float and a dip stick suitably graduated to indicate the volume of liquid at different heights in the bucket. The device is generally used for measuring the quantity of milk at milk purchasing centres.2. Nominal capacities
5. dm310 dm320 dm3and 50 dm3
3. General requirements
(a)The bucket shall be made of suitable metal or alloy. The metal or alloy used shall be thermally stable, shall resist deformation, shall not have an unduly high coefficient of cubical expansion, and shall not affect the liquid being measured in any way or be injurious to health. Some of the materials considered suitable are:(i)mild steel,(ii)stainless steel,(iii)brass sheet,(iv)copper sheet,(v)aluminium alloy.(b)The wall thickness of the bucket shall be so selected that the bucket will not get dented in normal use or become unusable after a few years in service.(c)The bucket shall be free from surface defects and indentation. External and internal surfaces of the bucket made of mild steel, copper sheet and brass sheet shall be well tinned or tin plated.(d)All seams shall be filled and smoothened to prevent the entrapment of air or liquid.(e)The bucket shall be provided with a well formed and proportionate spout to facilitate pouring of liquid.(f)The bucket shall be cylindrical in form. The bottom of the bucket shall be slightly concave to prevent change of shape due to the weight of the liquid. The maximum depth of the concavity shall not be more than 20 mm.(g)The bottom of the bucket shall be reinforced with angle strip of thickness not less than 5 mm.(h)The upper edge of the bucket shall be reinforced round the circumference with a reinforcing band having a thickness not less than 5 mm.(i)The bucket shall be provided with a suitable handle on the side opposite the spout.(j)The top of the bucket shall be provided with a cross band across the diameter. The band shall have groove of appropriate size and centrally located for inserting the dip stick.(k)The float shall be suitably fabricated so as to be free from holes, pockets, dents or crevices. A dip stick shall be firmly welded on the upper centre of the float. The dip stick together with the float shall be so constructed that the device so formed maintains verticality in all positions.4. Marking
The following inscriptions shall be clearly and indelibly marked at a conspicuous place on the bucket or on a special plate securely attached to the bucket:5. Sealing
A suitable plate or other device shall be provided to receive the stamp or seal of the verification authority.[PART VII] [ Substituted by G.S.R. 842(E), dated 9-11-2001 (w.e.f. 6-5-2002).]Part A
CLINICAL THERMOMETER-SOLID STEM TYPEScope.-This part specifies the requirements and methods of tests for solid stem type mercury in glass clinical thermometers having a maximum indicating device.1. Terminology
For the purpose of this standard the definitions given in IS 2627-1979 Glossary of terms relating to liquid-in-glass thermometers (first Revision) as revised from time to time in addition to the following, shall apply.2. Types
The thermometers shall be of the solid stem mercury-in-glass type.3. Temperature scale
The thermometers shall be graduated in degrees Celsius (°C) and shall have a range from 35 to 42°C or 35 to 43°C.4. Testing
Thermometers shall be tested for total vertical immersion.5. Requirements
| Sl. No. | Characteristic | Requirements |
| (1) | (2) | (3) |
| (i) | Scale range,0C | 35.0 TO 42.0 or 35.0 to 43.0 |
| (ii) | Smallest scale division0C | 0.1 |
| (iii) | Over all length, mm | 100 to 115 |
| (iv) | Scale length, mm | 40 to 65 |
| (v) | External diameter of stem, mm | 4 to 6 |
| (vi) | Bulb length, mm(a) Oral thermometer(b) Rectal thermometer | 12 to 183.0 to 6.0 (But not exceeding that of stem) |
| (vii) | External diameter of bulb, mm(a) Oral thermometer(b) Rectal thermometer | 2.0 to 3.53.0 to 6.0 (But not exceeding that of stem) |
| (viii) | Distance from top of the constriction to the 35.50C mark, mm, Min | 10 |
| (ix) | Distance from the highest graduation line to top of stem, mm, Min | 8 |
| (x) | Scale spacing, mm Min | 0.5 |
| Note.-See Fig. 3 in IS 8787 : 1977 |
6. Performance requirements
7. Marking and Packing
1. Apparatus
2.
Procedure.-(1) Place the thermometers for sometime in water at a temperature anywhere between 42 and 43°C. Then put them in the pockets of all the centrifuge, bulb facing outwards, that is away from the axis of the centrifuge while in rotation.Let the centrifuge work steadily at its correct speed for at least 2 minutes. Then stop it.Take the thermometers out of the pockets and observe the mercury column.Thermometers shall be taken as having satisfied the requirement of this test, if the mercury rests below or at 35°C mark.Important.-It is necessary that the room temperature does not exceed 34.5°C during the test.APPENDIX BTEST FOR PERMANENCY OF MARKING1. Procedure
1. Apparatus
2. Procedure
1.
It is not possible to determine the depression of zero of clinical thermometers (mercury-in-glass, with the maximum indicating device) covered by this specification. Therefore, special test thermometers (paragraph 2) shall be manufactured from the glass being examined in order to conduct the necessary measurements.2.
The test thermometers must meet the following requirements0.
02.
°C, 0.05°C or 0.1°C3.
The proper stabilization of each test thermometer must be tested in accordance with the following provisions:4.
The mean depression of zero is determined in accordance with the' following provisions:Part B
CLINICAL THERMOMETER-ENCLOSED SCALE TYPEScope.-This Part specifies the requirements and methods of test for enclosed scale type clinical thermometers having a maximum indicating device.1. Terminology
2. Type
The thermometers shall be of the enclosed-scale mercury-in-glass type.3. Temperature scale
The thermometers shall have a translucent paper or plastic material strip duly graduated, in degrees Celsius (°C) and shall have a range from 35 to 42°C or 35 to 43°C.4. Immersion
Thermometers shall be calibrated for total vertical/horizontal immersion.5. Requirements
| Sl. No. | Characteristic | Requirements |
| (1) | (2) | (3) |
| (i) | Scale range,0C | 35 to 42 or 35 to 43 |
| (ii) | Smallest scale division0C | 0.1 |
| (iii) | Overall length, mm, Max | 120 |
| (iv) | Scale length, mm | 45 to 65 |
| (v) | External diameter of sheath, mm (round or oval), max | 12 |
| (vi) | External diameter of capillary, mm | 2±0.2 |
| (vii) | External diameter of the bulb, mm | 4±0.5 |
| (viii) | Bulb length, mm, max | 21 |
| (ix) | Thickness of strip, mm | 0.6±0.1 |
| (x) | Distance above the constriction upto the 350C mark, mm, Min | 10 |
| (xi) | Distance from the highest graducation line to top of sheath, mm, Min | 8 |
6. Performance requirements
7. Marking and packing
1. Apparatus
2.
Procedure1. Apparatus
2. Procedure
1. Apparatus
Same as in paragraphs 1(1) and 1(2) of Appendix B provided that some automatic arrangement is made to switch off stirring at the instant the bulb of thermometers under test touch the water surface and to switch it again immediately after the thermometers are taken out of the water.2. Procedure
Part C
CLINICAL ELECTRICAL THERMOMETERS WITH MAXIMUM DEVICE1. Scope
2. Terminology
3. Description of the instrument
4. Metrological requirements
| Accuracy class | Complete thermometer | Indicating unit | Temperature probe |
| Class I | ±0.150C | ±0.050C | ±0.10C |
| Class II | ±0.20C | ±0.10C | ±0.10C |
5. Technical requirements
6. Practical instructions
7. Metrological controls
2. Determining maximum permissible errors
| Measuring range | Number of temperatures |
| ≤100C | 3 |
| >100C | 5 |
2. Electrical insulation resistance of the probe
3. Cleaning and disinfecting the probe
4. Low battery indication
Note.-Paragraphs 4 to 9 of Annexure B it is to be understood that the temperature indication of a complete thermometer shall be generated within the measuring range by inserting the probe in a reference water bath or in another bath with similar qualities. The temperature indication of an indicating unit designed for use with interchangeable probes shall be generated by replacing the probe by an auxiliary device, such as an appropriate precision resistor simulating the temperature of a resistance probe. The reference temperature indication is that obtained under the reference conditions described in paragraph 4(3).5. Ambient temperature
6. Thermal shock
7. Humidity
8. Electromagnetic radiation interference
9. Mechanical shock
2. Verification
2. Predicting (calculating) clinical electrical thermometers
Part VIII
MANOMETERS OF INSTRUMENTS FOR MEASURING ARTERIAL BLOOD PRESSURE(SPHYGMOMANOMETERS)1. GeneralThis Part deals with the following types of manometers of instruments for measuring arterial blood pressure:(i)mercury manometers, and(ii)manometers with an elastic measuring receiver:2. Units of measurement
The unit of measurement shall be millibar (symbol: mbar)Note:The following units are provisionally permitted but shall be derecognised later:Torr and millimetre of mercury. In practice, for the instruments under consideration 1 Torr =1 mm Hg=1.33 mbar.3. Material
Note.-The materials used shall be subjected to technical examination at the time of model approval.4. Details of construction
5. Scale
| Measuring range | Number of temperatures |
| ≤100C | 3 |
| >100C | 5 |
| Value of one graduation | Minimum distance between graduation marks |
| 2 mbar or 2 mmHg | 0.7 mm |
| 5 mbar or 5 mmHg | 1.8 mm |
6. Marking
7. Maximum permissible error
8. Sealing
1. Usage
2. Transport
1. Scope
This Part specifies general, performance, efficiency and mechanical and electrical safety requirements, including test methods for type approval, for non-invasive mechanical sphygmomanometers and their accessories which, by means of an inflatable cuff, are used for the non-invasive measurement of arterial blood pressure. The application of the cuff is not limited to a particular extremity of the human body (e.g., the upper arm).Within the scope of this specification are sphygmomanometers with a mechanical pressure sensing element and display, used in conjunction with a stethoscope or other manual methods for detecting Korotkoff sounds and for cuff inflation.Note.-Luer locks shall not be used with these devices.2. Terminology
3. Description of the category of instrument
The basic components of a sphygmomanometer are a cuff and bladder that can be wrapped around a patient's limb, a manual system for applying and releasing pressure to the bladder, and a means of measuring and displaying the instantaneous pressure in the bladder. Mechanical sphygmomanometers, which use either mercury or an aneroid manometer or another mechanical measuring device for the non-invasive measurement of the arterial blood pressure by means of an inflatable cuff.Note.-Components of these devices are manometer, cuff, valve for deflation (often in combination with rapid exhaust valve), hand pump or electro-mechanical pump and connection hoses. These devices may also contain electro-mechanical components for pressure control.4. Units of measurement
The blood pressure shall be indicated either in kilo-Pascal (kPa) or in millimetres of mercury (mmHg).5. Metrological requirements
6. Technical requirements
7. Metrological controls
2. Method of test for the influence of temperature on cuff pressure Indication
1. Reference manometer
2. Manometer of the device to be tested
3. Metal vessel
4. Pressure generator
MEASUREMENT SYSTEM FOR DETERMINING THE LIMITS OF ERROR OFTHE CUFF PRESSURE INDICATIONFIGURE 21. Reference manometer 2. Climatic chamber
3. Manometer of the device to be tested 4. Metal vessel
5. Pressure generator
MEASUREMENT SYSTEM FOR DETERMINING THE INFLUENCE OF TEMPERATUREFIGURE 3For each of the following combinations of temperature and humidity, condition the device for at least 3 h in the climatic chamber to allow the device to reach steady conditions: 10°C ambient temperature, 85% relative humidity (non-condensing); 20°C ambient temperature, 85% relative humidity (non-condensing); 40°C ambient temperature, 85% relative humidity (non-condensing).Carry out the test of the cuff pressure indication as described in paragraph 1(2) of this Annexure for each of the combinations of temperature and humidity mentioned above.3. Method of test for the maximum permissible error after storage
4. Method of test for air leakage of the pneumatic system
5. Method of test for pressure reduction rate for deflation valves
6. Method of test for the rapid exhaust valve
7. Method of test for the thickness of the scale marks and the scale spacing
8. Method of test for the internal diameter of the mercury tube
9. Method of test for security against mercury losses
10. Method of test for the influence of the mercury stopping device
11. Method of test for the hysteresis error of the aneroid manometer
12. Method of test for the construction
1. Scope
This specification gives general performance, efficiency and mechanical and electrical safety requirements, including test methods for type approval, for non-invasive electronic or automated sphygmomanometers and their accessories which, by means of an inflatable cuff; are used for the non-invasive measurement of arterial blood pressure.This specification only applies to devices measuring at the upper arm, the wrist or the thigh.Note.-Luer locks shall not be used with these devices [see paragraphs 6(11)(iii) and 7(5)].2. Terminology
3. Description of the category of instrument
The basic components of a sphygmomanometer are a cuff and bladder that can be wrapped around a patient's limb, a system for applying and releasing pressure to the bladder, and a means of measuring and displaying the instantaneous pressure in the bladder.4. Units of measurement
The blood pressure shall be indicated either in kilo-pascals (kPa) or in millimetres of mercury (mmHg).5. Metrological requirements
6. Technical requirements
7. Metrological Controls
2.
Method of test for the maximum permissible errors of the cuff pressure indicationRequirements in paragraph 5(1) shall apply.1. Reference manometer
2. Device to be tested
3. Metal vessel
4. Presure generator
Figure 1.Measurement system for determining the limit of error the cuff pressure indication.3. Method of test for the influence of temperature on cuff pressure indication
1. Reference manometer
2. Climatic chamber
3. Device to be tested
4. Metal vessels
5. Pressure generator
Figure 2.Measurement System for Determining the Influence of Temperature4. Test methods for the effect of voltage variations of the power source on the cuff pressure indication
5. Test methods for the effect of voltage variations of the power source on the result of the blood pressure measurement
6. Method of test for air leakage of the pneumatic system
7. Method of test for the pressure reduction rate
8. Method of test for the rapid exhaust valve
9. Test method for the zero setting
10. Test method for the drift of the cuff pressure indication
11. Test method for the stability of the blood pressure determination (influence of temperature and humidity)
12. Test methods for the stability of cuff pressure indication following prolonged usage
13. Test methods for the effect of external voltages and abnormal connections to the signal input/output ports
14. Test method for the cuff pressure deflation following an aborted measurement
Part IX – TAXIMETERS
1. Terminology
2. General
3. Technical characteristics
4. Inscription
5. Maximum permissible errors
6. Protection and guarantee seals
7. Standard test conditions for the vehicle
8. Test methods
To determine compliance with distance tolerances a distance test of the taximeter shall be conducted utilizing anyone of the following test methods:9. Test procedure
1. Scope
1. Measuring system and its constituents
2. Self service measuring systems
3. Metrological characteristics
4. Tests and test conditions
5. Electronic or electrical equipment
1. General requirements
2. Metrological requirements for measuring systems and meters
Maximum permissible errors and other metrological characteristics:100.
Where Mminis the minimum measured quantity having the form specified in paragraph 1, sub-paragraph (3), clause (ii).Note.-The minimum specified mass deviation is an absolute maximum permissible error.(iv)Whatever the measured quantity may be, the magnitude of the maximum permissible error (expressed as an absolute error) for the complete system is never less than the minimum specified mass deviation.(v)For any quantity equal to or greater than 1000 scale intervals, the repeatability error of the meter shall not be greater than ± 0.6%.(vi)Within their field of operation, meters shall present 'a magnitude of the difference between the initial intrinsic error and the error after the endurance test equal to or less than ± 1%.The requirement on repeatability applies after-the endurance test.3. Requirements for meters and ancillary devices of a measuring system
The meter and ancillary devices of a measuring system shall meet the following requirements, whether or not they are subject to a separate model approval:4. Technical requirements for electronic devices
5. Technical requirements, for measuring systems with self-service arrangement
6. Markings and sealing
7. Metrological control
When a test is conducted, the expanded uncertainty on the determination of errors on indications of mass shall be less than one-fifth of the maximum permissible or tolerance applicable for that test on model approval and one-third of the maximum permissible error applicable for that test on other verifications.However, this provision may not be fulfilled for tests at the minimum measured quantity or twice this value.Note.-The expanded uncertainty includes components of uncertainties that are in relation to the instrument to be verified, in particular its scale interval and, if applicable, the periodic variation. However, the repeatability error of the meter or device to be verified shall not be included in the uncertainty.1. Determine the tare weight of empty Compressed Natural Gas cylinder using weighing instrument of appropriate capacity, with verification scale interval of 10 g or less.
2. Thereafter the cylinder be connected to the Compressed Gaseous fuel measuring system be filled to the extent of approximately 10 kilogram.
3. From the initial and final weight of the cylinder, the weight of the CNG actually filled in the cylinder (T) is determined.
4. From the initial and the final readings of the measuring system, the CNG filled as indicated by the system (I) be determined.
5. The percentage of error of the measuring system is given by the formula:
| Error in percentage= | [1-T] | x 100 |
| [T] |
IX
SPECIFICATIONS FOR DOMESTIC WEIGHING INSTRUMENTSGENERAL(See rule 14)The provisions of this Schedule shall apply to weights and measures which are exclusively used for domestic purposes and no provision of this Schedule shall apply to any weights or measures used for trade or commerce.Every weighing and measuring instrument specified in this Schedule shall contain on it the legend "FOR DOMESTIC USE ONLY"; and every such legend shall be conspicuous and legible and shall be written in a colour which is in contrast to the colour of the instrument.No such legend shall be written at the bottom of the instrument or at any part of the instrument where such legend is not clearly visible.Part I – Kitchen Scales
1. Definition
"Kitchen scale" means a weighing instrument having a goods pan and a graduated scale, which can be used for weighing commodities or ingredients for domestic purposes.2. Capacity
The kitchen scales shall have the following capacities:500g.
,1 kg, 2 kg, 5 kg and 10 kgNote.-The capacity of a kitchen scale shall not, in any case exceed 10 kg.3. General requirements
1x.
10n.
, 2x10nor 5x 10nwhere "n" represents either zero or a whole number, positive or negative.4. Tests
5. Sealing
Part II – Tubular Balances
1. General
This Part deals with the requirements for tubular balances with graduated scale.2. Definitions
A tubular balance shall mean a weighing instrument, which on the application of the load to be weighed, indicates the weight of the load by the extension of a spring, such extension being indicated by means of a pointer on a graduated scale, which is longitudinally marked on the tube.3. Capacities
The capacities and the maximum permissible errors on tubular balances shall be as specified in Table 49.4. General requirements
5. Tests
6. Sealing
A provision shall be made to seal the tubular balance by means of a soft lead plug or wire and wherever practicable this plug shall pass through the frame. The lead plug or wire seal shall be so supported as to allow no risk or injury to the instrument. The Inspector's stamp shall be affixed on the lead plug or on a suitable lead plug in conjunction with the wire.TABLE 49Capacities And Maximum Permissible Errors For Tubular Balances| Capacity | Maximum weight corresponding to the distance between minimum graduations | Maximum permissible error on initial verification |
| (1) | (2) | (3) |
| 1kg | 20g | ±10g |
| 5kg | 100g | ±50g |
| 10kg | 200g | ±100g |
| 20kg | 500g | ±250g |
| 50kg | 500g | ±250g |
Part III – Bathroom Scales
1. General
2. Definition
A bathroom scale means a weighing scale with a platform to receive the person to be weighed, a weighing mechanism and a rotating dial or an indicator for automatic indication of the weight.3. Capacity
Bathroom scales shall have a capacity of not less than 120 kg.4. General requirements
1x.
10n.
, 2x10nor 5x10nwhere n represents either zero or a whole number, positive or negative.5. Tests
6. Maximum permissible error
The maximum permissible errors shall be as specified below:| Test load | Maximum permissible error at initial verification |
| From 10 kg up to and including 50 kg | ±500 g |
| Abov 50 kg | ±1kg |
7. Sealing
Bathroom scales shall be provided with a suitable place to receive the seal of verification authority.IX-A
Procedure For Carrying Out Calibration of Vehicle Tanks, Etc.(See rule 161)Part I – Calibration Of Vehicle Tanks For Petroleum Products And Other Liquids
1. Definitions
2.
Testing medium3.
Equipment and toolsThe following equipment and tools are required for calibration of vehicle tank4.
Calibration procedure5.
Maximum permissible error| Capacity, Litres | Permissible error, milliliters(±) |
| 50 | 50 |
| 100 | 100 |
| 200 | 200 |
| 500 | 500 |
| 1000 | 1000 |
| 1500 | 1500 |
| 2000 | 2000 |
| 5000 | 5000 |
6.
Markings| Compartment Number | Compartment Capacity | Space for Inspector's stamp |
| 1. Owner of vehicle tank | :- |
| 2. Vehicle tank Registration No | :- |
| 3. Nominal tank capacity | :- |
| 4. Marked tank capacity | :- |
| 5. Engine No. | :- |
| 6. Chassis NO. | :- |
| 7. Shape of cross-section | :-Circular/elliptical/ellipto rectangular. |
| 8. Circumferences of outlet pipers in mm. | :-C1= , C2=_______, C3=____, C4=__,Particulars of tyres. |
| Dimension of tank in mm | Internal lengths of compartments | Position and No. of wheels Pressure | Pressure in Kilopascals |
| Nominal Length (L) = mm | L1=........mm | Front.......PI | |
| Nominal Breadth (B) =mm | L2=........mm | Middle.......P 2 | |
| Nominal Height (H)= mm | L3=..........mm | Rear.......P3 | |
| L4=..........mm |
| Serial Number of Compartment | Marked Capacity of Compartments (In litres) | Dip hight(in mm) | Prof height (in mm) | Height of Dip pipe above Manhole cover | Height of Manhole cover above Tank prof (in mm) | Nominal capacity of compartments (in litres) (in mm) |
| 1....... | ....... | ....... | ....... | ....... | ....... |
| 2....... | ....... | ....... | ....... | ....... | ....... |
| 3....... | ....... | ....... | ....... | ....... | ....... |
| 4....... | ....... | ....... | ....... | ....... | ....... |
Part II – Method for Calibration of Vertical Oil Storage Tanks
1. Scope
This Part prescribes methods for calibration of vertical tanks by strapping and internal measurements. These tanks are meant for bulk storage of petroleum and liquid petroleum products.2.
Conditions for measurements3.
Interrupted measurementsIf the calibration of a tank is required to be interrupted, it may be resumed with minimum delay, without repetition of work previously completed provided that:4. Descriptive data
| Course(Rings)No. | Thickness | Type of vertical joint | Set in or out | Width of lap strap | Thickness of strap | No. of joints | Exposed course (ring) height | Inside course (ring)Height |
| 5. | . | . | . | . | . | . | . | . |
| 4. | . | . | . | . | . | . | . | . |
| 3. | . | . | . | . | . | . | . | . |
| 2. | . | . | . | . | . | . | . | . |
| 1. | . | . | . | . | . | . | . | . |
| No. | Description | Elevation, top of floor to bottom of connection |
| 1. | . | .. |
| 2. | . | .. |
| 3. | . | .. |
| 4. | . | .. |
| Type of bottom ..............................Height of crown.............................. |
| | Elevation | ||||
| Description | No. | Size | From | To |
5. Degree of accuracy
In order to obtain maximum obtainable accuracy in calibration tables, adjustments for effects of the following variables shall be incorporated in the tables:6. Expansion and contraction of steel tank shells due to liquid head and temperature These effects shall be eliminated by strapping the tank when it is at least two-thirds full with water or approximately full with the product [See also 2(c)]. The strapping record shall include water or product level from a known reference point, temperature of the tank contents and that of adjacent air.
Section ICalibration By Strapping7. General
8. Equipment
9. Circumference measurements
A. Strapping levels:Circumference shall be measured by a minimum of two strappings per course (ring) at the following levels:| Circumference | Tolerance |
| Up to 30 metres | ±2mm |
| Over 30 and up to 50 metres | ±4mm |
| Over 50 and up to 70 metres | ±6mm |
| Over 70 and up to 90 metres | ±8mm |
| Over 90 metres | ±10mm |
10. Shell plate thickness
11. Vertical measurements
12. Deadwood
13. Tank bottoms
14. Measurement of tilt
15. Floating-roof tanks
16. Variable volume roofs
17. General
18. Equipment
19. Diameter measurements
(a)Procedure:(i)All diameter measurement shall be made with a tension of 4.5 ± 0.5 kg applied to the tape as indicated by the dynamometer.(ii)All tape measurements shall be recorded as read, that is without including the length of the dynamometer.(iii)The dynamometer length at 4.5 kg shall be taken accurately before it is put into commission, and subsequent checked before and after calibration of each tank, the final check being made before leaving the site.(iv)The measurements shall be taken between diametrically opposite points at the following levels on each course (ring), the minimum number allowable at each level being two on each course (ring), at right angles to each other:(a)For riveted tanks (see Fig. 56):Part III – Method For Computation Of Capacity Tables For Vertical Oil Storage Tanks
1. Scope
This method prescribes the methods of computation on capacity tables for vertical storage tanks intended for bulk storage of petroleum and liquid petroleum products.2. General
3. Form of tank tables
Provided that tank tables have been prepared in accordance with the principles laid down in this standard, the form in which the table is set out will not alter the accuracy of the figures obtained from it, but the following principles shall be applied in preparing the tank tables:4. Corrections to be applied to measured circumferences
5. Calculations
| Open capacity m litres per centimetre | = | C2x 10000 |
| 4π x 1000.028 |
6. Corrections to be applied to diameter measurements
| Z | = | W2S3 | = | KS3 |
| 24P2 |
| P | K |
| 4.4kg | 8.29x10-5 |
| 4.5kg | 7.92x10-5 |
| 4.6kg | 7.58x10-5 |
7. Calculations
| 10-3x | D2x π | or0.000785376xD2 |
| 1000.028 x 4 |
8. Deadwood
9. Tank bottoms
10. Floating roof tank
| Roof weight in kg |
| Density of the stock in kg/litre at tank temperature |
11. Computation of contents of tanks inclined to the vertical
[See clauses 5(e) and 70](a)Tanks inclined to the vertical:(i)Capacity as determined in 5(e) and 7(e) applies to tanks which are vertical. For tanks inclined to the vertical at an angle q, the open capacity in litres per centimetre of vertical height, is given by:12. Example for strapping method
| Course(ring) No. | Measured external circumferences metres | Stepover corrections metres | Plate thickness | Internal heights of courses (rings) | |
| mm | Individual cm | Cumulative cm | |||
| 8 Top8 Middle8 Bottom | 113.040113.086113.085 | 0.0020.0020.002 | 777 | 187.0 | 1475.0 |
| 7 Top7 Middle7 Bottom | 113.127113.133113.130 | 0.0020.0020.002 | 777 | 179.0 | 1288.0 |
| 6 Top6 Middle6 Bottom | 113.090113.096113.092 | 0.0030.0030.003 | 101010 | 190.0 | 1109.0 |
| 5 Top5 Middle5 Bottom | 113.152113.160113.155 | 0.0040.0040.004 | 131313 | 179.0 | 919.0 |
| 4 Top4 Middle4 Bottom | 113.085113.092113.090 | 0.0100.0100.010 | 131313 | 191.0 | 740.0 |
| 3 Top3 Middle3 Bottom | 113.175113.176113.170 | 3.0100.0100.010 | 161616 | 178.0 | 549.0 |
| 2 Top2 Middle2 Bottom | 113.077113.081113.075 | 0.0130.0130.013 | 181818 | 191.0 | 371.0 |
| 1 Top1 Middle1 Bottom | 113.187113.189113.175 | 0.0150.0150.015 | 202020 | 180.0 | 180.0 |
| Course(ring) No. | Applicable height cm | Deadwood | Total deadwood in courses litres | |
| litres | 1/cm | |||
| 8 | 1466 to 1475 | -350 | -38.889 | |
| 8 | 1415 to 1466 | -508 | -9.961 | |
| 8 | 1350 to 1415 | 2336 | -35.938 | |
| 8 | 1288 to 1350 | nil | nil | -3194 |
| 7 | 1109 to 1288 | nil | nil | |
| 6 | 919 to 109 | nil | nil | |
| 5 | 740 to 919 | nil | nil | |
| 4 | 549 to 740 | -195 | -1.021 | -195 |
| 3 | 371 to 549 | -259 | -1.455 | -259 |
| 2 | 180 to 371 | -309 | -1.618 | -309 |
| 1 | 107 to 180 | -145 | -1.986 | |
| 1 | 51 to 107 | -59 | -1.054 | |
| 1 | 46 to 51 | -36 | -7.200 | |
| 1 | 0 to 46 | nil | nil | -122 |
| Measured external circumference at 20°C | 113.040 0 m |
| Correction for calibration temperature of tape | -.0.00102 m |
| Calculated external circumference at 15°C | 113.029 8 m |
| Step-over correction | -0.002 0 m |
| Correction for plate thickness | |
| 7x 7x6.2832mm | -0.0440m |
| Corrected internal circumference | 112.983 8 m |
| Course(ring) No. | Corrected internal circumferencem | Mean internal circumferencem | Open capacity of course (ring) | |
| 1/cm | litres | |||
| 8 Top8 Middle8 Bottom | 112.983 8113.029 8113.029 8 | 113.014 | 10163.48 | 1900571 |
| 7 Top7 Middle7 Bottom | 113.070 8113.076 8113.073 8 | 113.0738 | 10174.22 | 1821185 |
| 6 Top6 Middle6 Bottom | 113.014 0113.020 0113.016 0 | 113.0164 | 10163.95 | 1931150 |
| 5 Top5 Middle5 Bottom | 113.056 1113.064 1113.059 1 | 113.0598 | 10171.70 | 1820734 |
| 4 Top4 Middle4 Bottom | 112.983 1112.990 1112.988 1 | 112.9871 | 10158.62 | 1940296 |
| 3 Top3 Middle3 Bottom | 113.054 3113.005 3113.049 3 | 113.0530 | 10170.48 | 1810345 |
| 2 Top2 Middle2 Bottom | 112.940 7112.944 7112.938 7 | 112.9414 | 10150.41 | 1938428 |
| 1 Top1 Middle1 Bottom | 113.036 1113.038 1113.024 1 | 113.0328 | 10166.84 | 1830031 |
| Total | 14 993 040 |
| Oil dip | Open capacity | Dead wood | Net capacity |
| cm | 1/cm | 1/cm | 1/cm |
| 0 to 46 | 10166.84 | Nil | 10166.84 |
| 46 to 51 | 10166.84 | -7.20 | 10159.64 |
| 51 to 107 | 10166.84 | +1.05 | 10167.89 |
| 107 to 180 | 10166.84 | -1.99 | 10164.85 |
| 180 to 371 | 10150.41 | -1.62 | 10148.79 |
| 371 to 549 | 10170.48 | -1.46 | 10169.02 |
| 549 to 740 | 10158.62 | -1.02 | 10159.60 |
| 740 to 919 | 10171.70 | Nil | 10171.70 |
| 919 to 1109 | 10163.95 | Nil | 10163.95 |
| 1109 to 1288 | 10174.22 | Nil | 10174.22 |
| 1288 to 1350 | 10163.48 | Nil | 10163.48 |
| 1350 to 1415 | 10163.48 | -35.94 | 10127.54 |
| 1415 to 1466 | 10163.48 | -9.96 | 10153.52 |
| 1466 to 1475 | 10163.48 | -38.89 | 10129.54 |
13. Example for internal measurement method
[See clause 7(h)](a)Data obtained by internal measurement(i)In this example it is assumed that the same tank as in 12 has been calibrated by internal measurement. The means of each course (ring) of the tape measurements of the internal diameters are as in col. 2 of the table in (d) below:Dynamometer length at a tension of 4.5 kg = 21.30 cm(b)Additional data(i)All course (ring) height deadwood, etc., are the same as in 12.(c)Sag correction(i)For a tension of 4.5 kg, the sag correction for course (ring) No. 1 is :| Mean tape reading for diameter | 3578.78 cm |
| Sag correction (deduct) | 3.61 cm |
| Corrected tape reading | 3575.17 cm |
| Dynamometer length (add) | 21.30 cm. |
| Measured internal diameter at 20°C | 3596.47 cm |
| Correction for calibration temperature of tape (deduct) | 0.32 cm |
| Corrected internal diameter at 15°C | 3596.15 cm |
| Course (ring) No. | Mean tape reading | Mean tape reading for diameter corrected for sag and dynamometer | Mean internal diameter corrected for tape calibration temperature |
| cm | cm | cm | |
| 8 | 3579.75 | 3597.44 | 3597.12 |
| 7 | 3580.92 | 3598.61 | 3598.29 |
| 6 | 3578.90 | 3596.59 | 3596.27 |
| 5 | 3580.12 | 3597.81 | 3597.49 |
| 4 | 3577.50 | 3595.20 | 3594.88 |
| 3 | 3579.47 | 3597.26 | 3596.84 |
| 2 | 3576.95 | 3593.65 | 3593.33 |
| 1 | 3578.78 | 3596.47 | 3596.15 |
| Course (ring) No. | Open capacity of course (ring)1/cm | Open capacity of course (ring) litres |
| 8 | 10162.17 | 1900326 |
| 7 | 10168.79 | 1820213 |
| 6 | 10157.37 | 1929900 |
| 5 | 10164.27 | 1819404 |
| 4 | 10149.52 | 1938558 |
| 3 | 10160.59 | 1808585 |
| 2 | 10140.77 | 1936887 |
| 1 | 10156.69 | 1828204 |
| Total: | 14982077 |
| Oil dip (cm) | Open capacity (1/cm) | Deadwood(1/cm) | Net capacity (1/cm) |
| 0 to 46 | 10156.69 | nil | 10156.69 |
| 46 to 51 | 10156.69 | -7.20 | 10149.49 |
| 51 to 107 | 10156.69 | +1.05 | 10157.74 |
| 107 to 180 | 10156.69 | -1.99 | 10154.70 |
| 180 to 371 | 10140.77 | -1.62 | 10139.15 |
| 371 to 549 | 10160.59 | -1.46 | 10159.13 |
| 549 to 740 | 10149.52 | -1.02 | 10148.50 |
| 740 to 919 | 10164.27 | nil | 10164.27 |
| 919 to 1109 | 10157.37 | nil | 10157.37 |
| 1109 to 1288 | 10168.79 | nil | 10168.79 |
| 1288 to 1350 | 10162.17 | nil | 10162.17 |
| 1350 to 1415 | 10162.17 | -35.94 | 10126.23 |
| 1415 to 1466 | 10162.17 | -9.96 | 10152.21 |
| 1466 to 1475 | 10162.17 | -38.89 | 10123.28 |
| mm litres | cm litres | cm litres | cm litres | cm litres | cm litres | cm litres | cm litres | cm litres |
| 1 | 00 | 200 | 400 | 600 | 800 | 1000 | 1200 | 1400 |
| 2 | 05 | 05 | 05 | 05 | 05 | 05 | 05 | 05 |
| 3 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| 4 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 |
| 5 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 |
| 6 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
| 7 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 |
| 8 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 |
| 9 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 |
| 10 | 45 | 45 | 45 | 45 | 45 | 45 | 45 | 45 |
| 11 | 50 | 250 | 450 | 650 | 850 | 1050 | 1250 | 1450 |
| 12 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 |
| 13 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 |
| 14 | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 65 |
| 15 | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 |
| 16 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 |
| 17 | 80 | 80 | 80 | 80 | 80 | 80 | 80 | 80 |
| 18 | 85 | 85 | 85 | 85 | 85 | 85 | 85 | 85 |
| 19 | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 90 |
| 20 | 95 | 95 | 95 | 95 | 95 | 95 | 95 | 95 |
| 21 | 100 | 300 | 500 | 700 | 900 | 1100 | 1300 | 1500 |
| 22 | 05 | 05 | 05 | 05 | 05 | 05 | 05 | 05 |
| 23 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| 24 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 |
| 25 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 |
| 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
| 27 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 |
| 28 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 |
| 29 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 |
| 30 | 45 | 45 | 45 | 45 | 45 | 45 | 45 | 45 |
| 31 | 150 | 350 | 550 | 750 | 950 | 1150 | 1350 | 1550 |
| 32 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 |
| 33 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 |
| 34 | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 65 |
| 35 | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 |
| 36 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 |
| 37 | 80 | 80 | 80 | 80 | 80 | 80 | 80 | 80 |
| 38 | 85 | 85 | 85 | 85 | 85 | 85 | 85 | 85 |
| 39 | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 90 |
| 40 | 95 | 95 | 95 | 95 | 95 | 95 | 95 | 95 |
| 41 | ||||||||
| 42 | ||||||||
| 43 | ||||||||
| 44 | ||||||||
| 45 | ||||||||
| 46 | Data regarding strapping, dimensions, etc. | |||||||
| 47 | ||||||||
| 48 | Approved by | Signature | Date | |||||
| 49 |
X
Application Form For Registration Of Exporter/importer Of Weights And Measures(See rule 17)ToThe Director of Legal Metrology,Government of India,New Delhi.Sir,I/We hereby apply for registration of my/our* name(s) as exporter and/or importer of weights and/or measures.Particulars with regard to items specified in the table below are given against each such item. The registration fee of Rs ......................has been paid in the treasury at......................vide Chalan No ........................dated........................enclosed.1. Name and full address:
2. Whether individual/undivided Hindu family/registered firm :
3. Income-tax registration No. (if any):
4. Date of registration as manufacturer/dealer; registration No. and name of registering authority:
5. Date and No. of the license to carry on the business of weights and measures; the name of authority by whom the license was issued/re-newed:
6. Item(s) of weights and measures in relation to which the applicant has been registered as manufacturer and/or dealer:
7. Items of weights and measures for which application is being made for registration as
8. Items if any exported /imported during the period of two years immediately preceding the year in which the application is made:
9. Remarks:
*Delete which is not applicable.SignatureXI
REGISTER TO BE MAINTAINED BY THE MANUFACTURERS OF WEIGHTS AND MEASURES(See rule 26)1. Name and address of the manufacturer .............................
2. Description of the weight or measure .................................
3. (i) No. of the manufacturing license ....................................
4. Particulars of order, if any, suspending or revoking the license ...................................
| Sl.No. | Month | Unsold stock from previous month | Qty.Manufactured during the month | Total(3+4) | Sold within the State | Sold outside the State | Total sold(6+9) | Balance(5-11) | Remarks | |||
| No. of items sold | Despatch voucher No. and Date | Name of the State | No. of itemssold | Despatch voucher No. and date | ||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 |
| Sl.No. | Date | State from which received | Items& their Nos. booked for repair | Receipt No. & date of issue to the user | Amount of repairing charges | Amount of verification fee | Total amount charged | Date of return to the user | Remarks |
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
1. Name and address of the dealer
..............................................................................................2. Description of the weight or measure
....................................................................................3. (i) License No
............................................................................................................................4. Particulars of order, if any, suspending or revoking the license .........................................
5. Category of weight or measure (Category A or B) .................................................................
| Sl.No. | Month | Unsold stock from previous month | Bought within the State during the month | Bought from outside the State during the month | Total(3+4+5) | Sold within the State | Sold outside the State | Total sold(7+9) | Balance(6-12) | Remarks | |||
| No. of items sold | Despatch voucher No. & Date | No. of items sold | Despatch voucher No. & date | Name of the State | |||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 |
XII
SCALE OF FEE(See rule 27)| Approval of model| At the rates specified in the Standards of Weights and Measures (Approval of Model) Rules, 1977 subject to the condition that total fee so charged is not more than Rs. 5, 000. |
| Verification and stamping of any weight or measure of the first category| At the rates specified and in the Standards of Weights and Measures(Inter-State, Verification a and Stamping) Rules, 1987 subject to the condition that total fee so charged is not more than Rs. 1, 000 |
| Verification and stamping of any weight or measure of the second category| At the rates specified in the Standards of Weights and Measures (Inter-State Verification and Stamping) Rules, 1987 subject to the condition that total fee so charged is not more than Rs. 5, 000 |
| Issue of a copy of any document not being a document of confidential nature| At the rate of Re. 1 for every 100 words or part thereof |
| Registration/Renewal of registration of any person as an exporter or of importer or both| Rs.10.00 |
| Application fee for preferring any appeal under the Act to the Director| Rs.10.00 |
| Application fee for preferring any appeal under the Act to the Central Government| Rs.20.00 |