美利体育登录入口官网:EN ISO 8502-12:2004 涂料和有关产品使用前的钢底材的处理.表面清洁度的评定试验.第12 部分:水溶性铁离子的现场滴定法 ISO 8502-12-2003
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