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Metallic and other inorganic coatings. Chromate conversion coatings on zinc, cadmium, aluminium-zinc alloys and zinc-aluminium alloys. Test methods. | Status: Superseded, Withdrawn
description
1 Scope
This International Standard 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.
- — to colourless and coloured chromate conversion coatings containing trivalent and hexavalent chromium in varying proportions and produced by either chemical or electrochemical processes, and
- — only to chromate coatings that are free from any supplementary coatings, such as oil, water or solvent-based polymers or wax.
Details
Publisher
BS
File size
1.04 MB
Pages
18
Format
PDF
Publication date
2011-01-31
ISBN-13
978-0-580-65989-8
ISBN-13 plain
9780580659898
ISBN-10
0580659898
