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BS EN ISO 3210:2017

Current

Current

The latest, up-to-date edition.

Anodizing of aluminium and its alloys. Assessment of quality of sealed anodic oxidation coatings by measurement of the loss of mass after immersion in acid solution(s)

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

26-01-2018

€130.88
Excluding VAT

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus
7 Preparation of test specimen
8 Procedure
9 Expression of results
10 Test report
Annex A (normative) - Method for the degreasing
        and drying of test specimens
Bibliography

Defines methods of assessing the quality of sealed anodic oxidation coatings on aluminium and its alloys by measurement of the loss of mass after immersion in acid solution(s).

Committee
STI/33
DevelopmentNote
Supersedes BS EN 12373-6, BS EN 12373-7 and 09/30195867 DC. (08/2010) Supersedes 15/30317616 DC. (02/2018)
DocumentType
Standard
Pages
14
PublisherName
British Standards Institution
Status
Current
Supersedes

This document specifies methods of assessing the quality of sealed anodic oxidation coatings on aluminium and its alloys by measurement of the loss of mass after immersion in acid solution(s).

It consists of the following two methods.

  • Method 1: Assessment of quality of sealed anodic oxidation coatings by measurement of the loss of mass after immersion in a phosphoric acid based solution without prior acid treatment.

  • Method 2: Assessment of quality of sealed anodic oxidation coatings by measurement of the loss of mass after immersion in a phosphoric acid based solution with prior acid treatment.

Method 1 is applicable to anodic oxidation coatings intended for decorative or protective purposes or where resistance to staining is important.

Method 2 is applicable to anodic oxidation coatings intended for outdoor architectural purposes. For less severe applications, Method 1 can be more suitable.

The methods are not applicable to the following:

  • hard-type anodic oxidation coatings which normally are not sealed;

  • anodic oxidation coatings that have been sealed only in dichromate solutions;

  • anodic oxidation coatings produced in chromic acid solutions;

  • anodic oxidation coatings that have undergone treatment to render them hydrophobic.

NOTE1 The methods assess the quality of hydrothermal sealing applied to anodized aluminium. They can be appropriate for other sealing methods.

NOTE2 The methods are destructive and can serve as reference methods in case of doubt or dispute regarding the results of the test for loss of absorptive power (see ISO2143 ) or the measurement of admittance (see ISO2931 ).

Standards Relationship
EN ISO 3210:2017 Identical
ISO 3210:2017 Identical

ISO 2143:2017 Anodizing of aluminium and its alloys — Estimation of loss of absorptive power of anodic oxidation coatings after sealing — Dye-spot test with prior acid treatment
ISO 7583:2013 Anodizing of aluminium and its alloys — Terms and definitions
ISO 2931:2010 Anodizing of aluminium and its alloys Assessment of quality of sealed anodic oxidation coatings by measurement of admittance

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