6JIS G 0575-1999, Method of Copper Sulfate - sulfuric Acid Test for Stainless Steels [ S ].
7NF EN ISO 3651 -2, Determination of Resistance to Intergranular Corrosion of Stainless Steel -Part 2 : fer- ritic, Austenitic and Ferritic - austenitic ( Duplex ) Stainless Steel-corrosion Test in Media Containing Sulfuric Acid[ S].