Abstract / scope
Cancels and replaces the first edition (1976). Lays down criteria for the purity of photographic-grade p-methylaminophenol sulfate and specifies the test methods to be used to determine the purity.
ISO 422:1994Published
Photography — Processing chemicals — Specifications for p-methylaminophenol sulfate
Photographie — Produits chimiques de traitement — Spécifications pour le sulfate de p-méthylaminophénol