Reference number
ISO 746:1976
ISO 746:1976
© ISO 2025
International Standard
ISO 746:1976
Sodium carbonate for industrial use — Determination of matter insoluble in water at 50 degrees C
Edition 1
1976-02
1976-02
ISO 746:1976
5000
Published
(Edition 1, 1976)
This publication was last reviewed and confirmed in 2023.
Therefore this version remains current.
Abstract
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.