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CEN - EN 4707

Aerospace series - Acid pickling of aluminum and aluminum alloy without hexavalent chromium

inactive
Organization: CEN
Publication Date: 1 April 2014
Status: inactive
Page Count: 14
ICS Code (Aluminium): 49.025.20
ICS Code (Surface treatment): 25.220.20
scope:

This standard specifies the acid pickling of aluminium and aluminium alloys.

It is applicable whenever referenced.

Purpose of process

Pre-treatment before penetrant testing/penetrant inspection.

Pre-treatment before anodizing.

Final treatment for parts prior to adhesive bonding application.

Final treatment before welding or brazing.

Pre-treatment before chemical milling.

Final treatment for parts prior to painting application.

Pre-treatment for parts prior to surface conversion coatings.

Desmutting (Blanchiment), after alkaline etching or acid pickling.

Document History

January 1, 2020
Aerospace series - Acid pickling of aluminium and aluminium alloys without hexavalent chromium
This document specifies the acid pickling of aluminium and aluminium alloys free from hexavalent chromium.
EN 4707
April 1, 2014
Aerospace series - Acid pickling of aluminum and aluminum alloy without hexavalent chromium
This standard specifies the acid pickling of aluminium and aluminium alloys. It is applicable whenever referenced. Purpose of process Pre-treatment before penetrant testing/penetrant inspection....

References

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