Abstract / scope
Cancels and replaces the first edition (1976). Establishes criteria for the purity of photographic-grade potassium bromide and specifies the test methods to be used to determine the purity.
ISO 420:1994Published
Photography — Processing chemicals — Specifications for potassium bromide —
Photographie — Produits chimiques de traitement — Spécifications pour le bromure de potassium