DIN EN ISO 8501-1:2007
涂料和有关产品使用前钢衬底的制备.表面清洁度的目测评估.第1部分:未涂覆钢衬底和原有涂层彻底清除的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 - Part 1: Rust grades and preparation grades of uncoated steel substrates and of steel substrates after overall removal of previou