Resumen
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.
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Informaciones generales
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Estado: PublicadoFecha de publicación: 2021-05Etapa: Norma Internacional publicada [60.60]
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Edición: 4Número de páginas: 11
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Comité Técnico :ISO/TC 107ICS :25.220.20
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Ciclo de vida
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Anteriormente
RetiradaISO 3613:2010
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Ahora
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