77.120.10;25.220.20 标准查询与下载

NF A91-455-7:1999 铝和铝合金.阳极化.第7部分:通过对预先进行酸处理的浸入到磷酸/铬酸溶液中的质量损失的测量评定密封阳极氧化物镀膜的质量

Aluminium and aluminium alloys. Anodizing. Part 7 : assessment of quality of sealed anodic oxidation coatings by measurement of the loss of mass after immersion in phosphoric acid/chromic acid solution with prior acid treatment.