🔥🔥 Don’t Miss Out on Our End of Autumn Sale. If you have any questions, feel free to click the bottom right corner to contact our customer service..

Concat us[email protected]
Shopping Cart

No products in the cart.

🔍
BS EN ISO 3613:2021

BS EN ISO 3613:2021

$102.76

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
BSI 2021 20
PDF Format Searchable Printable Preview Now
Guaranteed Safe Checkout
Categories: ,

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

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 to

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

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

PDF Catalog

PDF Pages PDF Title
2 National foreword
4 European foreword
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
10 4 Reagents
4.3.1 Test solution C 1.
4.3.2 Test solution C 2.
11 4.6 Ammonium persulfate [(NH4)2S2O8].
5 Apparatus
12 6 Test methods
6.1 General
6.2 Test for the presence of a colourless chromate coating on zinc
6.3 Test for the presence of a colourless chromate coating on zinc and cadmium
13 6.4 Test for the presence of a colourless chromate coating on zinc-aluminium (mass fraction of aluminium: 5 %) alloys
6.5 Test for the presence of hexavalent chromium in both colourless and coloured chromate coatings
6.5.1 General
6.5.2 Test method employing test solution C 1
6.5.3 Test method employing alternative test solution C 2 (destructive)
14 6.5.4 Expression of results
15 6.5.5 Calibration of spectrophotometer
16 6.6 Determination of hexavalent chromium content of coloured chromate coatings
6.6.1 Preparation of calibration graph
6.6.2 Blank test
6.6.3 Determination
6.6.4 Expression of results
6.7 Determination of total chromium content of coloured chromate coatings
6.7.1 Preparation of calibration graph
6.7.2 Blank test
17 6.7.3 Determination
6.7.4 Expression of results
6.8 Determination of mass per unit area of both colourless and coloured chromate coatings by gravimetric method
6.9 Test for adhesion by abrasion
6.10 Quality evaluation test of chromate layers on zinc and cadmium surfaces
18 7 Test report
19 Bibliography

Related products

BS EN ISO 3613:2021
$102.76