IS 228 Pt.15-1992 Methods for chemical analysis of steels. Part 15: Determination of copper by thiosulphate iodide method (for copper 0.05 to 5 percent) (Second Revision)
1992IS 228 Pt.15-1992 Methods for chemical analysis of steels. Part 15: Determination of copper by thiosulphate iodide method (for copper 0.05 to 5 percent) (Second Revision)