ASD-STAN - PREN 4707
Aerospace series Acid pickling of aluminum and aluminum alloy without hexavalent chromium
inactive
| Organization: | ASD-STAN |
| Publication Date: | 1 May 2012 |
| Status: | inactive |
| Page Count: | 8 |
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
March 1, 2018
Aerospace series Acid pickling of aluminium and aluminium alloys without hexavalent chromium
This standard specifies the acid pickling of aluminium and aluminium alloys free from hexavalent chromium.
PREN 4707
May 1, 2012
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....