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.
Status: PublishedPublication date: 1976-02
Edition: 1Number of pages: 2
Technical Committee: ISO/TC 47 Chemistry
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