Preparation of steel substrates before application of paints and related products - Tests for the assessment of surface cleanliness - Part 12: Field method for the titrimetric determination of water-soluble ferrous ions (ISO 8502-12:2003)
涂料和相关产品使用前钢衬底的制备.表面清洁度评定试验.第12部分:水溶性亚铁离子滴定测定的现场方法(ISO 8502-12-2003);德文版EN ISO 8502-12:2004