IS 228 : Part 21 : 2003 Methods for Chemical Analysis of Steels - Part 21 : Determination of Copper by Spectrophotometric Method (For Copper 0.02 to 0.50 Percent)

1 Scope

This standard (Part 21) describes the spectrophotometric(diethyldithio-carbamate) method for determination of copper in therange from 0.02 to 0.50 percent in steel.

2 References

IS 264 : 1976 Nitric acid

IS 265 : 1993 Hydrochloric acid

IS 266 : 1993 Sulphuric acid

IS 1070 : 1992 Reagent grade water