Abstract / scope
Cancels and replaces the first edition (1976). Establishes criteria for the purity of photographic-grade ammonium thiosulfate solution and specifies the tests to be used to determine the purity.
ISO 3619:1994Published
Photography — Processing chemicals — Specifications for ammonium thiosulfate solution
Photographie — Produits chimiques de traitement — Spécifications relatives au thiosulfate d'ammonium en solution