Kilogram Will Get New Measure in 2019

Published on October 28, 2017
The International Conference of Heads of Metrology Institutes has announced that the kilogram will not be pegged to the cylinder made of 90% platinum and 10% iridium from 2019.

Kilogram Will Get New Measure in 2019

  • The new artefacts must be derived from the constants of nature that are all interdependent.
  • These include constants such as the Planck constant.
  • Planck constant is the ratio of the electromagnetic radiation from a photon to its frequency and the charge of an electron.
  • Presently a salt-shaker-sized cylinder housed at the Bureau International des Poids et Mesures (BIPM), Paris and weighing exactly a kilogram served as the definition of the measure. 
  • National Physical Laboratory of India too has a replica of this, since 1957, and it has served as the reference for a variety of industries to keep their weights accurate.

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