Specifies the following methods of analysis for the substances to be tested: measurement of pH, determination of water content, determination of free alkalinity or free acidity, determination of total alkalinity, determination of matter extractable by light petroleum, determinition of the sodium alkylsulphates content, determination of sodium sulphate content, determination of sodium chloride content. In an annex a general scheme of anlysis is given.
PUBLISHED
ISO 895:1977
90.93
Standard confirmed
Jan 11, 2022