GB/T 6730.44-2017
铁矿石 锌含量的测定 1-(2-吡啶偶氮)-2-萘酚分光光度法
GB/T 6730.44-2017
Iron ores—Determination of zinc content—1-(2-pyridylazo)-2-naphthoI spectrophotometric method
GB/T 6730.44-2017
Iron ores—Determination of zinc content—1-(2-pyridylazo)-2-naphthol spectrophotometric method
GB/T 6730.44-2017
Iron ores—Determination of cobalt content—4-[(5-chloro-2-pyridyl)azo]-1,3-diamino-benzene spectrophotometric method
GB/T 6730.44-2017
GB/T 6730.44-2017
GB/T 6730.44-2017
Chemical reagent Arsenazo Ⅲ
GB/T 6730.44-2017
GB/T 6730.44-2017
Chemical analysis of gallium—Part 2:Determination of lead content—The 4-(2-pyridy lazo)-resorcinol spectrophotometric method
GB/T 6730.44-2017
Determination of uranium in soil--CL-5209 extractant-containing resin separation 2-(5-bromo-2-pyridylazo)-5-diethlaminophenol spectrophotometry
GB/T 6730.44-2017
Methods for chemical analysis of gallium--The 4-(2-pyridylazo)-resorcinol photometric method for the determination of lead content
GB/T 6730.44-2017
Methods for chemical analysis of gallium--The 4-(2-pyridylazo)-resorcinol photometric method for the determination of lead content
GB/T 6730.44-2017
Methods for chemical analysis of iron ores The 1-(2-pyridylazo)-2-naphthol photometric method for the determination of zinc content
GB/T 6730.44-2017
Silicate rocks—Determination of cobalt content—4-[(5-Chtoro-2-pyridyl)-azo]-1,3-diamino benzene photometric method
GB/T 6730.44-2017
Silver—Determination of antimony content—2-(5-bromo-2-pyridylazo)-5-diethylaminophenol spectrophotometric method
GB/T 6730.44-2017
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 6730.44-2017
GB/T 6730.44-2017
GB/T 6730.44-2017
Dye, Red, 2,5,2',5'-Tetramethyltriphenylmethane-4,4'-Diazo-Bis-Betahydroxynaphthoic Anilide
GB/T 6730.44-2017