DIN EN ISO 8502-12:2005
涂裝油漆和有關(guān)產(chǎn)品前鋼材預(yù)處理.表面清潔度的評定試驗.第12部分:水溶性鐵離子的現(xiàn)場滴定測定方法
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 (ISO 8502-12:2003); German version