BS EN ISO 8501-1:2007 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估.未涂覆钢衬底和彻底清除原有涂层后钢衬底的锈蚀等级和制备等级
Preparation of steel substrates before application of paints and related products - Visual assessment of surface cleanliness - Rust grades and preparation grades of uncoated steel substrates and of steel substrates after overall removal of previous coatin