New Scientific Standard of Kg

Feb. 6, 2019

The prototype of one kilogram (NPK-57) is already available in India and placed at National Physical Laboratory, New Delhi as per the provisions made under the Legal Metrology (National Standards) Rules, 2011.

  • There is no such proposal at present before the Government to achieve the new prototype of kilogram through physical constants.

  • The previous definition of kilogram was based on the mass of the international prototype ‘kilogram’ which is an artefact, however, the new definition is based on physical constants of nature.

  • The change is in the definition of kilogram and will not have any practical implications.

Source : PIB