This document specifies methods for the determination of
â the presence of colourless chromate conversion coatings,
â 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,
â the total chromium content per unit area on zinc and cadmium,
â the mass per unit area of both colourless and coloured coatings,
â the satisfactory adhesion of chromate conversion coatings, and
â the quality of chromate coatings.
These methods are applicable to
â colourless and coloured chromate conversion coatings containing trivalent and hexavalent chromium in varying proportions and produced by either chemical or electrochemical processes, and
â 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 |