KS M ISO 8502-9-2002(2017) 涂料和有关产品使用前钢基体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-solu