ISO International Standard

Liquid chemical products for industrial use — Determination of density at 20 degrees C

The principle of the specified method of reference consists in the determination of the mass of a volume of the substance at 20 °C which is contained in a pyknometer, and the determination of the capacity of pyknometer by measuring the mass of an adequate volume of water at 20 °C. Calculation of the density by division of the mass of substance by the capacity of pyknometer. – Replaces ISO Recommendation R 758-1968.

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