Codes et normes - Achat
ISO 420:1994
Photography -- Processing chemicals -- Specifications for potassium bromide --
SKU: iso_020280_109557
Publié par ISO
Année de publication 1994
2 Edition
4 pages
détails du produit
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.