ISO 8501-2:1994
涂装油漆和有关产品前钢材预处理 表面清洁度的目视评定 第2部分:局部去除原有涂层后钢材的除锈等级
Preparation of steel substrates before application of paints and related products - Visual assessment of surface cleanliness - Part 2: Preparation grades of previously coated steel substrates after localized removal of previous coatings