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 Kilogram Will Get New Measure in 2019](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj1vH9hQ0_3X0Z-r_PXAq2GswdD0sLOOr7W2-XgfOyByeHiRmPnsBHqZgjl-6QuPlDA6yV7IuWIYYov_13KgzeuQz_epbjJEAlaATFnex0DOonSZhhGWbK5TMbgMKDns-MmEa_03yjEP9k/s400-rw/th25-jacob-koshGEI2NNI8S3jpgjpg.jpg)
- 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.