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ISO 746:1976

Sodium carbonate for industrial use -- Determination of matter insoluble in water at 50 degrees C

General information

Valid from 01.02.1976
Directives or regulations
None

Standard history

Status
Date
Type
Name
01.02.1976
Main
The principle of the method consists in dissolution of a test portion and filtration of the solution through a tared filter. Washing of the insoluble matter at approximately 50 C until the washings are no longer alkaline. Drying of the residue and weighing. Replaces ISO Recommendation R 746-1968.

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