NF T35-502-12:2005 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.
2005NF T35-502-12:2005 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.