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DIN EN ISO 3613:2021 Edition

DIN EN ISO 3613:2021 Edition

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Metallic and other inorganic coatings – Chromate conversion coatings on zinc, cadmium, aluminium-zinc alloys and zinc-aluminium alloys – Test methods

Published By Publication Date Number of Pages
DIN 2021-08 20
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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. 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 – only to chromate coatings that are free from any supplementary coatings, such as oil, water or solvent-based polymers or wax.

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DIN EN ISO 3613
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