GB/T 6730.8-1986 Methods for chemical analysis of iron ores The potassium dichromate volumetric method for the determination of iron (Ⅱ) content

GB/T 6730.1-1986 Methods for chemical analysis of iron ores—Preparation of predried test samples for chemical analysis GB/T 6730.2-1986 Methods for chemical analysis of iron ores Gravimetric method for the determination of moisture content GB/T 6730.3-1986 Methods for chemical analysis of iron ores The gravimetric method for the determination of hygroscopic moisture content in analytical samples GB/T 6730.4-1986 Methods for chemical analysis of iron ores The stannous chloride-mercuric chloride-potassium dichromate volumetric method for the determination of total iron content GB/T 6730.5-1986 Methods for chemical analysis of iron ores The titanium chloride-potassium dichromate volumetric method for the determination of total iron content GB/T 6730.6-1986 Methods for chemical analysis of iron ores The ferric chloride-sodium acetate volumetric method for the determination of metallic iron content GB/T 6730.7-1986 Methods for chemical analysis of iron ores The sulfosalicylic acid photometric method for the determination of metallic iron content GB/T 6730.9-1986 Methods for chemical analysis of iron ores The silicomolybdic blue photometric method for the determination of silicon content GB/T 6730.10-1986 Methods for chemical analysis of iron ores The gralimetric method for the determination of silicon content GB/T 6730.11-1986 Methods for chemical analysis of iron ores The fluoride replacement complexometric method for the determination of aluminum content GB/T 6730.12-1986 Methods for chemical analysis of iron ores The chrome azurol S photometric method for the determination of aluminum content GB/T 6730.13-1986 Methods for chemical analysis of iron ores The potassium permanganate volumetric method for the determination of calcium content GB/T 6730.14-1986 Methods for chemical analysis of iron ores The flame atomic absorption spectrophotometric method for the determination of calcium and magnesium content GB/T 6730.15-1986 Methods for chemical analysis of iron ores The complexometric method for the determination of magnesium content GB/T 6730.16-1986 Methods for chemical analysis of iron ores The barium sulfate gravimetric method for the determination of sulfur content GB/T 6730.17-1986 Methods for chemical analysis of iron ores The eombustion iodometric method for the determination of sulfur content GB/T 6730.18-1986 Methods for chemical analysis of iron ores The n-butyl acetate extraction-molybdenum blue photometric method for the determination of phosphorus content GB/T 6730.19-1986 Methods for chemical analysis of iron ores The bismuth phosphomolybdate blue photometric method for the determination of phosphorus content GB/T 6730.20-1986 Methods for the chemical analysis of iron ores The volumetric method for the determination of phosphorus content GB/T 6730.21-1986 Methods for chemical analysis of iron ores The potassium periodate photometric method for the determination of manganese content GB/T 6730.22-1986 Methods for chemical analysis of iron ores The diantipyrine methane photometric method for the determination of titanium content GB/T 6730.23-1986 Methods for chemical analysis of iron ores The ferric ammonium sulfate volumetric method for the determination of titanium content GB/T 6730.24-1986 Methods for chemical analysis of iron ores The arsenazo Ⅲ photometric method for the determination of rare earth elements content GB/T 6730.25-1986 Methods for the chemical analysis of iron ores—The gravimetric method for the determination of rare earth elements content GB/T 6730.26-1986 Methods for chemical analysis of iron ores The thorium nitrate volumetric method for the determination of fluorine content GB/T 6730.27-1986 Methods for chemical analysis of iron ores The lanthanum-alizarin complexon photometric method for the determination of fluorine content GB/T 6730.28-1986 Methods for chemical analysis of iron ores The ion-selective electrode method for the determination of fluorine content GB/T 6730.29-1986 Methods for chemical analysis of iron ores The barium sulfate grarimetric method for the determination of barium content GB/T 6730.30-1986 Methods for chemical analysis of iron ores The diphenyl carbazide photometric method for the determination of chromium content GB/T 6730.31-1986 Methods for chemical analysis of iron ores The benzoylphenyl-hydroxylamine extraction photometric method for the determination of vanadium content GB/T 6730.32-1986 Methods for chemical analysis of iron ores The ferrous sulfate volumetric method for the determination of vanadium content GB/T 6730.33-1986 Methods for chemical analysis of iron ores The oscilloscopic polarography method for the determination of tin content GB/T 6730.34-1986 Methods for chemical analysis of iron ores The pyrocatechol violet-cetyl trimethylamine bromide photometric method for the determination of tin content GB/T 6730.35-1986 Methods for chemical analysis of iron ores The oxalic acid bis-cyclohexylidene hydragide (cuprizone) photometric method for the determination of copper content GB/T 6730.36-1986 Methods for chemical analysis of iron ores The flame atomic absorption spectrophotometric method for the determination of cupper content GB/T 6730.37-1986 Methods for chemical analysis of iron ores The 4-[(5-chloro-2-phridyl)azo]-1,3-diaminobenzene photometric method for the determination of cobalt content GB/T 6730.38-1986 Methods for chemical analysis of iron ores The nitroso-R salt photometric method for the determination of cobalt content GB/T 6730.39-1986 Methods for chemical analysis of iron ores—The dimetylglyoxime photometric method for the determination of nickel content GB/T 6730.40-1986 Methods for the chemical analysis of iron ores The polarography method for the determination of nickel content GB/T 6730.41-1986 Methods for chemical analysis of iron ores The oscilloscopic polarography method for the determination of lead content GB/T 6730.42-1986 Methods for chemical analysis of iron ores The dithizone photometric method for the determination of lead content GB/T 6730.43-1986 Methods for the chemical analysis of iron ores The oscilloscopic polarography method for the determination of zinc content GB/T 6730.44-1986 Methods for chemical analysis of iron ores The 1-(2-pyridylazo)-2-naphthol photometric method for the determination of zinc content GB/T 6730.45-1986 Methods for chemical analysis of iron ores The diethyldithiocar bamic acid Ag salt photometric method for the determination of arsenic content GB/T 6730.46-1986 Methods for chemical analysis of iron ores The extraction separation-molybdenum blue photometric method for the determination of arsenic content GB/T 6730.47-1986 Methods for chemical analysis of iron ores—The sulfochlorophenol S photometric method for the determination of niobium content GB/T 6730.48-1986 Methods for chemical analysis of iron ores The dithio diantipyryl methane photometric method for the determination of bismuth content GB/T 6730.49-1986 Methods for chemical analysis of iron ores The flame atomic absorbtion spectrophotometric method for the determination of sodium and potassium content GB/T 6730.50-1986 Methods for chemical analysis of iron ores The gas volumetric method for the determination of total carbon content GB/T 6730.51-1986 Methods for chemical analysis of iron ores The caustic asbestos absorption gravimetric method for the determination of carbon content in carbonate

GB/T 6730.8-2016 Iron ores—Determination of iron(Ⅱ) content—Potassium dichromate titrimetric method

JIS M8213-1971