BS EN 12373-4:1998
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
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Aluminium and aluminium alloys. Anodizing Estimation of loss of absorptive power of anodic oxidation coatings after sealing by dye spot test with prior acid treatment
Hardcopy , PDF
26-10-2018
English
30-04-2010
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Foreword
Introduction
1 Scope
2 Principle
3 Reagents
4 Test specimens
5 Procedure
6 Expression of results
7 Test report
Annex A (normative) - Interpretation of the
results of the dye spot test
Comparison with chart of coloured spots of two dyes.
| Committee |
STI/33
|
| DevelopmentNote |
Supersedes BS 6161-5(1982) and 96/123161 DC. (08/2005) Reviewed and Confirmed by BSI, May 2007. (04/2007)
|
| DocumentType |
Standard
|
| Pages |
12
|
| PublisherName |
British Standards Institution
|
| Status |
Withdrawn
|
| SupersededBy | |
| Supersedes |
This Part of this European Standard specifies a method of estimating the loss of absorptive power of anodic oxidation coatings that have undergone a sealing treatment, by dye absorption after acid pretreatment. The method is suitable for use as a production control method and is applicable to anodic oxidation coatings which may be subjected to weathering or aggressive environments or where resistance to staining is important. The method is not applicable to those coatings: formed on alloys containing more than 2 % copper or 4 % silicon; sealed by the dichromate process; that have been given supplementary processing, for example oiling, waxing or lacquering; that are coloured in deep shades; that are less than 3 µm thick. The method is less appropriate where nickel or cobalt salts, or organic additives, have been added to the sealing bath.
| Standards | Relationship |
| UNE-EN 12373-4:1999 | Identical |
| I.S. EN 12373-4:1999 | Identical |
| NEN EN 12373-4 : 1998 | Identical |
| NF EN 12373-4 : 1999 | Identical |
| NS EN 12373-4 : 1998 | Identical |
| EN 12373-4 : 1998 | Identical |
| DIN EN 12373-4:1999-04 | Identical |
| SN EN 12373-4 : 1999 | Identical |
| UNI EN 12373-4 : 2000 | Identical |
| NBN EN 12373-4 : 1999 | Identical |
| BS 3987:1991 | Specification for anodic oxidation coatings on wrought aluminium for external architectural applications |
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