Metallic and other inorganic coatings - Chromate conversion coatings on zinc, cadmium, aluminium-zinc alloys and zinc-aluminium alloys - Test methods
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.
| SDO | ISO: International Organization for Standardization |
| Document Number | ISO 3613 |
| Publication Date | Not Available |
| Language | en - English |
| Page Count | |
| Revision Level | |
| Supercedes | |
| Committee | ISO/TC 107 |