ASTM B 921 : 2008
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Hardcopy , PDF
11-11-2014
English
01-04-2008
CONTAINED IN VOL. 02.05, 2017 Defines the requirements relating to rinsed and non-rinsed non-hexavalent chromium conversion coatings on aluminium and aluminium alloys intended to give protection against corrosion and as a base for other coatings.
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