NF EN ISO 3613

NF EN ISO 3613

May 2021
Standard Current

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

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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Main informations

Collections

National standards and national normative documents

Publication date

May 2021

Number of pages

20 p.

Reference

NF EN ISO 3613

ICS Codes

25.220.20   Surface treatment

Classification index

A91-473

Print number

1

International kinship

European kinship

EN ISO 3613:2021
Sumary
Metallic and other inorganic coatings - Chromate conversion coatings on zinc, cadmium, aluminium-zinc alloys and zinc-aluminium alloys - Test methods

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.

Replaced standards (1)
NF EN ISO 3613
February 2011
Standard Cancelled
Metallic and other inorganic coatings - Chromate conversion coatings on zinc, cadmium, aluminium-zinc alloys and zinc-aluminium alloys - Test methods

Le présent document spécifie des méthodes permettant de déterminer : la présence de couches de conversion au chromate incolores ; la présence de chrome hexavalent dans les couches colorées et incolores sur zinc, cadmium ou alliages d'aluminium-zinc (fraction massique d'aluminium de 55 %, dans une plage de 54 % à 56 %) et de zinc-aluminium (fraction massique d'aluminium de 5 %) la teneur totale en chrome par unité de surface sur zinc et cadmium ; la masse par unité de surface des couches incolores et colorées ; le degré d'adhérence des couches de conversion au chromate, et la qualité des couches de conversion au chromate. Ces méthodes s'appliquent aux couches de conversion au chromate incolores et colorées contenant du chrome trivalent et hexavalent en diverses proportions et produites par un procédé chimique ou électrochimique, et uniquement aux couches de chromate exemptes de tout revêtement supplémentaire tel que huile, polymère à base d'eau ou de solvant, ou cire.

Table of contents
  • Avant-propos
  • 1 Domaine d'application
  • 2 Références normatives
  • 3 Termes et définitions
  • 4 Réactifs
  • 5 Appareillage
  • 6 Méthodes d'essai
  • 7 Rapport d'essai
  • Bibliographie
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