涂覆涂料前钢材表面处理 表面清洁度的评定试验 第5部分：涂覆涂料前钢材表面的氯化物测定（离子探测管法）

Preparation of steel substrates before application of paints and related products-Tests for the assessment of surface cleanliness-Part 5:Measurement of chloride on surfaces prepared for painting(ion detection tube method)