Reference number
ISO 2479:1972
ISO 2479:1972
© ISO 2024
International Standard
ISO 2479:1972
Sodium chloride for industrial use — Determination of matter insoluble in water or in acid and preparation of principal solutions for other determinations
Edition 1
1972-12
1972-12
ISO 2479:1972
7399
Published
(Edition 1, 1972)
This publication was last reviewed and confirmed in 2023.
Therefore this version remains current.
Abstract
Insoluble substances shall be defined by the conditions described in this document. The object is not to dissolve all the impurities but only those of interest to users. The method is applicable to the analysis, carried out inaqueous medium or in acid medium. The principle consists in solution of the test portion in water, filtration, drying and weighing of the insoluble residue. Dilution of the filtrate to form the main solution for carrying out other determinations.