Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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GB 3258.3-1982 30.0 via email in 1~3 business day valid
GB 3258.5-1982 15.0 via email in 1~3 business day superseded
GB 3884.15-1986 45.0 via email in 1~3 business day valid
GB/T 1819.6-2004 Methods for chemical analysis of tin concentrates - Determination of antimony content - The malachite green spectrometric method and the flame atomic absorption spectrometric method 60.0 via email in 1~3 business day valid
SN 0065.3-1992 Method for determination of total rare earth qxides content for export Europium-Rich Yttrium-Rich Sm-Eu-Gd qxides―Gravimetric method 204.0 via email in 1~3 business day abolished
YS/T 240.3-1994 C 30.0 via email in 1~3 business day abolished
GB/T 1820-1979 Determination of tin content in tin concentrates--Beryllium as carrier-fusion with sodium peroxide iodate titrimetric method 180.0 via email in business day abolished
YB/T 159.5-1999 Methods for chemical analysis of titanium concentrate(rock minerals)—The combustion iodometric method for the determination of sulfur content 75.0 via email in 1~3 business day superseded
SN 0065.2-1992 Method for determination of ignition loss for export Europium-Rich Yttrium-Rich Sm-Eu-Gd oxides―Gravimetric method 30.0 via email in 1~3 business day abolished
GB/T 1819.13-2004 Methods for chemical analysis of tin concentrates - Determination of magnesium oxide and calcium oxide contents - Flame atomic absorption spectrometric method 60.0 via email in 1~3 business day superseded
GB/T 1819.9-2004 Methods for chemical analysis of tin concentrates - Determination of tungsten trioxide content - The thiocyanate spectrophotometric meethod 45.0 via email in 1~3 business day superseded
YS/T 240.5-1994 C 15.0 via email in 1~3 business day abolished
GB/T 1819.10-2017 Methods for chemical analysis of tin concentrates―Part 10:Determination of sulfur content―High frequency combustion with infrared absorption method and potassium iodate titrimetric method 165.0 via email in 1~3 business day valid
GB 3258.11-1982 45.0 via email in 1~3 business day superseded
GB 8152.8-1987 Methods for chemical analysis of lead concentrates - The DTPM spectrophotometric method for the determination of bismuth content 60.0 via email in 1~3 business day valid
GB/T 1819.2-2004 Methods for chemical analysis of tin concentrates - Determination of tin content - The potassium iodate titrimetric method 45.0 via email in 1~3 business day valid
GB/T 1831-1979 Determination of silicon dioxide content in tin concentrates--Silicon molybdenum blue photometric method 180.0 via email in business day abolished
GB 8152.6-1987 Methods for chemical analysis of lead concentrates; The polarographic method for the determination of bismuth content 60.0 via email in 1~3 business day valid
GB/T 1819.5-2004 Methods for chemical analysis of tin concentrates - Determination of arsenic content - The molybdoantimonyarsenate blue spectrophotometric method and the distillation-iodimetric titri 60.0 via email in 1~3 business day valid
YB/T 159.6-1999 Methods for chemical analysis of titanium concentrate(rock minerals) - The EGTA-CyDTA volumetric method for the determination of calcium oxide and magnesium oxide content 60.0 via email in 1~3 business day superseded
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