Sodium carbonate for industrial use — Determination of matter insoluble in water at 50 degrees C
NORMA vydaná dňa 1.2.1976
Designation standards: ISO 746:1976
Publication date standards: 1.2.1976
The number of pages: 2
Approximate weight : 6 g (0.01 lbs)
Country: International technical standard
Kategória: Technické normy ISO
Description / 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.