GB/T 13293.6-1991 Higher purity copper cathode—Determination of phosphorus content—Heteropoly phosphato-vanadato-molybdicacid-crystal violet spectrophotometric method

GB/T 13293.1-1991 Higher purity copper cathode—Determination of selenium and tellurum contents—Catalytic oscillopolarographic method GB/T 13293.2-1991 Higher purity copper cathode—Determination of bismuth content—Hydride generation-atomic fluorescence spectrometric method GB/T 13293.3-1991 Higher purity copper cathode—Determination of chromium, manganese and cadmium contents—Zeeman effect electrothermal atomic absorption spectrometric method GB/T 13293.4-1991 Higher purity copper cathode—Determination of antimony content-2-[(-5-bromo-2-pyridyl)azo]-5-diethylaminophenol spectrophotometric method GB/T 13293.5-1991 Higher purity copper cathode—Determination of arsenic content—Heteropoly arsenomolybdic acid-crystal violet spectrophotometric method GB/T 13293.7-1991 Higher purity copper cathode—Determination of iron, cobalt and lead contents—Zeeman effect electrothermal atomic absorption spectrometric method GB/T 13293.8-1991 Higher purity copper cathode—Determination of nickel content—Zeeman effect electrothermal atomic absorption spectrometric method GB/T 13293.9-1991 Higher purity copper cathode—Determination of tin content—Zeeman effect electrothermal atomic absorption spectrometric method GB/T 13293.10-1991 Higher purity copper cathode—Determination of zinc content—Flame atomic absorption spectrometric method GB/T 13293.11-1991 Higher purity copper cathode—Determination of silicon content—Molybdenum blue spectrophotometric method GB/T 13293.12-1991 Higher purity copper cathode—Determination of silver content—Separation and preconcentration with sulfhydryl cotton-flame atomic absorption spectrometric method GB/T 13293.13-1991 Higher purity copper cathode—Determination of sulphur content—Combustion-potassium iodate titrimetric method

GB/T 5121.2-2008 Methods for chemical analysis of copper and copper alloys—Part 2:Determination of phosphorus content

GB 1.4 GB/T 1467-2008 Method for chemical analysis of metallurgy product—General rules and regulations GB/T 7729-2021 Chemical analysis of metallurgical products—General rule for spectrophotometric methods