Methods for chemical analysis of fire smelting nickel substrate material—Part 7: Determination of copper content—BCO spectrophotometric method and flame atomic absorption spectrometric method
Methods for chemical analysis of fire smelting nickel substrate material—Part 1:Determination of nikel content—Dimethylglyoxime spectrophotometric method and dimethylglyoxime gravimetric method
Methods for chemical analysis of fire smelting nickel substrate material—Part 9:Determination of carbon and sulfur contents—Infrared absorption method after high frequency combustion