20/30394406 DC - BS EN ISO 3613. Metallic and other inorganic coatings. Chromate conversion coatings on zinc, cadmium, aluminium-zinc alloys and zinc-aluminium alloys. Test methods

20/30394406 DC

BS EN ISO 3613. Metallic and other inorganic coatings. Chromate conversion coatings on zinc, cadmium, aluminium-zinc alloys and zinc-aluminium alloys. Test methods

Status : Current, Draft for public comment   Published : June 2020

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This document specifies methods for the determination of

  1. the presence of colourless chromate conversion coatings,

  2. 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,

  3. the total chromium content per unit area on zinc and cadmium,

  4. the mass per unit area of both colourless and coloured coatings,

  5. the satisfactory adhesion of chromate conversion coatings, and

  6. the quality of chromate coatings.

These methods are applicable

  1. to colourless and coloured chromate conversion coatings containing trivalent and hexavalent chromium in varying proportions and produced by either chemical or electrochemical processes, and

  2. only to chromate coatings that are free from any supplementary coatings, such as oil, water or solvent-based polymers or wax.




Standard Number20/30394406 DC
TitleBS EN ISO 3613. Metallic and other inorganic coatings. Chromate conversion coatings on zinc, cadmium, aluminium-zinc alloys and zinc-aluminium alloys. Test methods
StatusCurrent, Draft for public comment
Publication Date22 June 2020
Normative References(Required to achieve compliance to this standard)ISO 4520, ISO 3892, IEC 60068-2-30
Informative References(Provided for Information)ISO 9227, ASTM B117
International RelationshipsISO/DIS 3613:2020
Draft Expiry Date15 August 2020
DescriptorsAdhesion tests, Chromium, Cadmium, Chemical analysis and testing, Conversion coating, Aluminium alloys, Protective coatings, Coatings, Zinc, Determination of content, Colorimetry, Chromates
ICS25.220.20
Title in FrenchRevêtements métalliques et autres revêtements inorganiques — Couches de conversion au chromate sur zinc, cadmium et alliages d'aluminium-zinc et de zinc-aluminium — Méthodes d'essai
CommitteeSTI/33
PublisherBSI
FormatA4
DeliveryYes
Pages18
File Size336 KB
NotesWarning: this draft is not current beyond its expiry date for comments.
Price£20.00


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