GB/T 12967.6-2008

Test Methods for anodic oxidation coatings of aluminium and aluminium alloys - Part 6:Determination of color differences and appearance of colored anodic oxide films by viewing method

铝及铝合金阳极氧化膜检测方法 第6部分：目视观察法检验着色阳极氧化膜色差和外观质量