Methods for chemical analysis of zinc concentrate roasting—Part 8:Determination of acid-soluble silicon dioxide content—Molybdenum blue spectrophotometry
Chemical analysis methods of gold alloys and palladium alloys for dental ceramic restoration—Part 2:Determination of palladium content—Dimethylglyoxime gravimetry
Methods for chemical analysis of tin concentrates—Part 12:Determination of silicon dioxide content—The silicomolybdenum blue spectrophotometry and sodium hydroxide titration
Methods for chemical analysis of tungsten concentrates—Part 1:Determination of tungsten trioxide content—Ammonium tungstate igniting gravimetric method