Reference number
ISO 740:1976
ISO 740:1976
© ISO 2024
International Standard
ISO 740:1976
Sodium carbonate for industrial use — Determination of total soluble alkalinity — Titrimetric method
Edition 1
1976-02
1976-02
ISO 740:1976
4990
Published
(Edition 1, 1976)
This publication was last reviewed and confirmed in 2023.
Therefore this version remains current.
Abstract
Specifies a titrimetric test method for the determination of the basicity of soluted material. The principle of the procedure consists in solution of a test portion in water, filtration of the solution and titration with a standard volumetric solution of hydrochloric acid in presence of methyl orange as indicator. Repaces ISO Recommendation R 740-1968.