DIN EN 12373-6:1999 铝和铝合金.阳极处理.第6部分:在预先未进行酸处理情况下涂层在铬酸/磷酸溶液中浸渍以后通过测定质量损耗对密封阳极处理氧物涂层进行质量评定
Aluminium and aluminium alloys - Anodizing - Part 6: Assessment of quality of sealed anodic oxidation coatings by measurement of the loss of mass after immersion in phosphoric acid/chromic acid solution without prior acid treatment; German version EN 1237