BS EN ISO 8501-3:2006 涂料和相关产品使用前钢衬底的处理.表面清洁度的目测评定.:焊接、切边和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 - Preparation grades of welds, edges and other areas with surface imperfections