ISO 8501-3:2006
涂装油漆和有关产品前钢材的预处理.表面清洁度的目视评定.第3部分:焊接、切边及其它表面缺陷区域的处理等级
Preparation of steel substrates before application of paints and related products - Visual assessment of surface cleanliness - Part 3: Preparation grades of welds, edges and other areas with surface imperfections