KS M ISO 8502-9-2021 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9部分:水溶性盐电导测定的现场方法
Preparation of steel substrates before application of paints and related products — Tests for the assessment of surface cleanliness — Part 9: Field method for the conductometric determination of water