KS M ISO 8502-2-2017 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2部分:清洁表面氯化物的实验室测定
Preparation of steel substrates before application of paints and related products-Tests for the assessment of surface cleanliness-Part 2:Laboratory determination of chloride on cleaned surfaces