Sodium and potassium silicates for industrial use — Determination of total alkalinity — Titrimetric method
NORMA vydaná dňa 1.4.1976
Označenie normy: ISO 1692:1976
Dátum vydania normy: 1.4.1976
Počet strán: 2
Približná hmotnosť: 6 g (0.01 libier)
Krajina: Medzinárodná technická norma
Kategória: Technické normy ISO
Description / Abstract: The principle of the procedure based on titration of a test portion with a standard volumetric hydrochloric acid solution, in the presence of methyl orange as indikator. The alkalinity is expressed as a percentage by mass of sodium oxide potassium oxide.