YS/T 953.8-2014 Methods for chemical analysis of fire smelting nickel substrate material―Part 8:Determination of iron content―Titanium trichloride reduction-potassium dichromate titrimetric method
Methods for chemical analysis of fire smelting nickel substrate material―Part 8:Determination of iron content―Titanium trichloride reduction-potassium dichromate titrimetric method