Abstract / scope
This International Standard establishes criteria for the purity of photographic-grade anhydrous sodium metabisulfite
and specifies the tests to be used to determine the purity.
Photographie — Produits chimiques de traitement — Spécifications pour le métadisulfite de sodium anhydre
This International Standard establishes criteria for the purity of photographic-grade anhydrous sodium metabisulfite
and specifies the tests to be used to determine the purity.