Section 100(7) in The Legal Metrology (General) Rules, 2011
(7)Influence quantities(i)Static temperatureInstruments shall comply with the appropriate metrological and technical requirements at temperatures from - 10°C to + 45°CFor special applications, however, the limits of the temperature range may differ from the above provided that this range is not less than 30°C and is specified in the descriptive markings.Instruments shall be tested in accordance with the static temperatures test in as specified in paragraph 8(3)(i) of Annex A.(ii)Mains power supply (AC)Instruments that are powered by an AC supply shall comply with the appropriate metrological and technical requirements when operated under variations of voltage from - 15 % to + 10 % of the value marked on the instrument.Instruments shall be tested in accordance with the mains power supply (AC) test as specified in paragraph 8(3)(i) of Annex A.(iii)Battery power supply (DC)Instruments that are powered by a DC supply shall comply with the appropriate metrological and technical requirements in accordance with paragraph 4(3)(viii).Instruments shall be tested in accordance with the battery power supply (DC) test as specified in paragraph 8(3)(iv) of Annex A.
