Abstract
A principle is presented for reproducing the unit of combustion energy, the joule, on the GET 16-96 State Primary Standard, which is based on using high-purity benzoic acid grade K-1. Metrological characteristics are given for various types of benzoic acid produced in various countries and used in combustion calorimetry. A comparison is made of the combustion energies for Russian K-3 benzoic acid and American 39i, which have been obtained with a GET 16-96.
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