Aerospace series. Trivalent chromium based chemical conversion coatings for aluminium and aluminium alloys
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Standard number:
BS EN 4729:2017
Pages:
16
Released:
2017-09-25
ISBN:
978 0 580 97651 3
Status:
Standard
DESCRIPTION
BS EN 4729:2017
This standard BS EN 4729:2017 Aerospace series. Trivalent chromium based chemical conversion coatings for aluminium and aluminium alloys is classified in these ICS categories:
25.220.99 Other treatments and coatings
This European Standard specifies trivalent chromium based chemical conversion coatings for aluminium and aluminium alloys. It covers the application by bath but also by touch-up. It doesn’t give complete in house process instructions; these shall be given in the manufacturers detailed process instructions.