Objavljen
The method is applicable to water soluble sulphate, in the product, but also to sulphates in a principal solution prepared in an acid medium. The principle consists in dissolution of a test portion and separation of the insoluble residue. Precipitation of the sulphate ions by barium chloride in a boiling acid medium. Filtration, washing and ignition of the precipitate. Weighing of the residue.
OBJAVLJEN
ISO 2480:1972
90.93
Odluka o potvrđivanju standarda
29. 11. 2023.
Natrijum-hlorid za industrijsku upotrebu — Određivanje sadržaja sulfata — Gravimetrijska metoda
90.93 Odluka o potvrđivanju standarda
Natrijum-hlorid, tehnički - Određivanje sadržaja sulfata (kao SO4) - Gravimetrijska metoda
95.99 Povučen