ISO 3613:2021

Metallic and other inorganic coatings -- Chromate conversion coatings on zinc, cadmium, aluminium-zinc alloys and zinc-aluminium alloys -- Test methods
Autor: ISO
Código ICS: 25.220.20


This document specifies methods for the determination of—    the presence of colourless chromate conversion coatings,—    the presence of hexavalent chromium in colourless and coloured coatings on zinc or cadmium or aluminium-zinc (mass fraction of aluminium: 55 %, within a range of 54 % to 56 % mass fraction) and zinc-aluminium (mass fraction of aluminium: 5 %) alloys,—    the total chromium content per unit area on zinc and cadmium,—    the mass per unit area of both colourless and coloured coatings,—    the satisfactory adhesion of chromate conversion coatings, and—    the quality of chromate coatings.These methods are applicable to—    colourless and coloured chromate conversion coatings containing trivalent and hexavalent chromium in varying proportions and produced by either chemical or electrochemical processes, and—    chromate coatings that are free from any supplementary coatings, such as oil, water or solvent-based polymers or wax.

Especificaciones de la Norma
Fecha de Publicación 10/05/2021
Título Secundario Revêtements métalliques et autres revêtements inorganiques -- Couches de conversion au chromate sur zinc, cadmium et alliages d'aluminium-zinc et de zinc-aluminium -- Méthodes d'essai
Páginas Técnicas 11
Idioma Inglés