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[Cites 0, Cited by 0] [Section 137] [Entire Act]

Union of India - Subsection

Section 137(2) in The Central Motor Vehicles Rules, 1989

(2)Substances of gas are assigned to one of three following divisions based on the primary hazard of the gas during transport;
(a)Flammable gases:
Gases which at 20°C and a standard pressure of 101.3 kPa,
(i)are ignitable when a mixture of 13 per cent or less by volume with air; c..
(ii)have a flammable range with air of at least 12 percentage point, regardless of the lower flammable limit. Flammability shall be determined by tests or by calculation in accordance with methods adopted by International Standards Organisation [ISO: 10156: 1996] or by Bureau of Indian Standards [IS: 1446-198511-
(b)Non flammable, non-toxic gases:
Gases which are transported a pressure not less than 280 kPa at 20°C, or as refrigerated liquids and which,
(i)are asphyxiant-gases which dilute or replace the oxygen normally in the atmosphere;
(ii)are oxidizing-gases which may, generally by providing oxygen, cause or contribute to the combustion of other material more than air does; or
(iii)do not come under the other divisions;
(c)Toxic gases:
Gases which are known to be so toxic or corrosive to humans as to pose a hazard to health.Note.-Gases meeting the above criteria owing to their corrosivity are classified as toxic with a subsidiary corrosive risk.
(C)Flammable chemicals:
(i)Flammable gases.-Gases which at 20°C and at standard pressure of 101.3 kPa are:
(a)ignitable when a mixture of 13 per cent or less by volume with air, or
(b)have a flammable range with air of at least 12 percentage points regardless of the lower flammable limits.
Note.-The flammability shall be determined by tests or by calculation in accordance with methods adopted by International Standards Organisation (ISO: 10156: 1996) or by Bureau of Indian Standards (IS: 1446-1985).
(ii)Extremely flammable liquids.-Chemicals which have flash point lower than or equal to 23°C and boiling point less than 35°C.
(iii)Very high/flammable liquids.-Chemicals which have a flash point lower than or equal to 23°C and initial boiling point higher than 35°C.
(iv)Highly flammable liquids.-Chemicals with a flash point lower than or equal to 60°C but higher than 23°C.
(v)Flammable liquids.-Chemicals which have a flash point higher than 60"C: but lower than 90°C.
(D)Reactive Substances:
Reactive substances are those substances which start reacting chemically with any other material and reducing gases through their own decomposition. Such substances are Inorganic Alkalies (for example NaoH, Iodine and the like) and Acids (for example H,SO4, HNO3, HCL and the like)
(E)Oxidizing Substances:
(a)Oxidizing substances:Substances which, while in themselves not necessarily combustible, may generally by yielding oxygen, cause or contribute to the combustion of other material. Such substances maybe contained in an article;
(b)Organic peroxides:Organic substances which contain the bivalent-0-0- structure and may be considered derivative of hydrogen peroxide, where one or both of the hydrogen atoms have been replaced by organic radials. Organic peroxides are thermally unstable substances which may undergo exothermic self-accelerating decomposition. In addition, they may have one or more of the following properties,
(i)be liable to explosive decomposition;
(ii)burn rapidly;
(iii)be sensitive to impact or friction;
(iv)react dangerously with other substances;
(v)cause damage to the eyes.
(F)Toxic:
Toxic chemicals:-Chemical having the following values of acute toxicity and which owing to their physical and chemical properties, are capable of producing major accident hazards:
Sl.No. Toxicity Oral toxicity (mg/kg) Dermal toxicity (mg/kg). Inhalation toxicity (mg/I)
1 Extremely toxic >5 <40 <0.5
2. Highly toxic >5-50 >40-200 <05-2.0
3. Toxic. >50-200. >200-1000. >2-10