Sodium carbonate for industrial use — Determination of total soluble alkalinity — Titrimetric method
NORMA vydaná dňa 1.2.1976
Označenie normy: ISO 740:1976
Dátum vydania normy: 1.2.1976
Počet strán: 2
Približná hmotnosť: 6 g (0.01 libier)
Krajina: Medzinárodná technická norma
Kategória: Technické normy ISO
Description / 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.