DIN EN ISO 8501-3:2007 涂料及其相关产品使用前钢基片的制备.表面清洁度的目视评估.第3部分:有表面缺陷的焊缝、边缘和其他区域的制备等级
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 (ISO 8501-3:2006); English version of DIN