Abstract / scope
Cancels and replaces the first edition (1976). Establishes criteria for the purity of photographic-grade anhydrous sodium carbonate and sodium carbonate monohydrate and specifies the test methods to be used to determine the purity.
ISO 424:1994Published
Photography — Processing chemicals — Specifications for anhydrous sodium carbonate and sodium carbonate monohydrate
Photographie — Produits chimiques de traitement — Spécifications pour le carbonate de sodium anhydre et monohydraté