The Legal Metrology Act, 2009 (1 of 2010) was implemented with effect from 1st of April, 2011. To sell anything in the Indian market one has to comply with the Legal Metrology Act. The basic requirements are:

  • Every unit of weight or measure shall be in accordance with the metric system based on the international system of units.
  • It also specifies the base unit of all the products. Some of the base units are:
  1. Length shall be in meter
  2. Mass shall be in kilogram
  3. Time shall be in second and so on
  • Every numeration shall be made in accordance with the decimal system
  • A person shall quote a price, publish the advertisement, and indicate the quantity of the pre-packaged commodity in accordance with this Act.
  • Every reference standard, secondary standard, and working standard shall be verified and stamped in such manner and after payment of such fee as may be prescribed.
  • Any transaction of goods, class of goods or undertakings shall be made by such weights, measure or number according to this Act.
  • A product shall be pre-packed in specified standard quantities or number and bears thereon such declarations and particulars in such manner as may be prescribed

The Legal Metrology (General) Rules, 2011

To specify details of standards and commercial Weight or Measure in regard to denomination, physical characteristics, material, tolerance, design, and performance.

Made under Legal Metrology Act, 2009, these rules govern the specifications of standards of Weights and Measures for reference, Secondary and Working standards, used for the purpose of periodic verification and re-verification. These also regulate the conditions of usage of Weights and Measures in any transaction or protection, which ought to be conformed to physical characteristics and configuration as specified in the schedule-V of these rules. These also govern the conditions of import of Weight and Measure requiring registration of importer with the Legal Metrology Department. These rules exclusively prohibit any use of Non-Standard Weight and Measure in any trade and commerce. However, under the rules, permission for usage of such instruments is granted only for scientific investigation or research. The thirteen schedules appended to these rules contain details of Weight and Measure instruments and their characteristics, configuration, condition and the manner of periodic verification and re-verification.

Name of the all Weighing and Measuring Intruments which should need to have Calibration Certificate, Government Stamping & Government Verification Certificate annually

The instruments which come under the provisions of the Act for verification and calibration are:

  1. Weights
  2. Measures
  3. Steel tape measures.(fabric tape/folding scales)
  4. Dispensing Pumps(Petrol Pumps)
  5. Length measures
  6. Weighbridges
  7. Beam Scales
  8. Surveying chains used for land measurement
  9. Counter Machines
  10. Water meter (Domestic)
  11. Clinical thermometer
  12. Sphygmomanometer
  13. Taxi Meter
  14. CNG Measuring instruments
  15. Calibration and verification of tank lorry
  16. Oil storage tanks
  17. Automatic gravimetric filling machines
  18. Peg Measures
  19. Automatic Rail Weighbridges
  20. Automatic Road Weighbridges
  21. VATS
  22. Totalizing Automatic weighing instruments (totalising Hopper weighers)
  23. Bulk Meter
  24. Liquid System other than water
  25. Volumetric Container type liquid measuring devices

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