Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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GB/T 23951-2009 Inorganic chemicals for industrial use—General method for the determination of residue after ignition $120.00 via email in 1~3 business day valid
GB/T 23952-2009 Inorganic chemicals for industrial use—General method for the determination of total nitrogen content—Distillation-acid-base titrations method $120.00 via email in 1~3 business day valid
GB/T 23957-2009 Light calcium carbonate for tooth-paste industry $120.00 immediately superseded
GB/T 23957-2021 Light calcium carbonate for tooth-paste industry $225.00 via email in 1~3 business day valid
GB/T 2449-2006 Sulfur for industrial use $400.00 via email in 1~3 business day superseded
GB/T 2449.1-2014 Sulphur for industrial use―Part 1:Solid product $370.00 via email in 1~5 business day superseded
GB/T 2449.1-2021 Sulphur for industrial use—Part 1: Solid product $345.00 via email in 1~5 business day valid
GB/T 2449.2-2015 Sulphur for industrial use―Part 2:Liquid product $80.00 via email in 1~3 business day valid
GB/T 2590.1-1981 Zirconium and hafnium oxides;Determination of zirconium(hafnium)oxide contents;Mandelic acid gravimetric method $184.00 via email in 1~3 business day abolished
GB/T 2590.10-1981 Hafnium oxides;Determination of manganese oxide content;Potassium periodate photometric method $184.00 via email in 1~3 business day abolished
GB/T 2590.11-1981 Zirconium oxide;Determination of nickel content;2,2 $184.00 via email in 1~3 business day abolished
GB/T 2590.2-1981 Zirconium and hafnium oxides--Determination of iron content--Sulfosalicylic acid photometric method $180.00 via email in 1~3 business day valid
GB/T 2590.3-1981 Zirconium and hafnium oxides--Determination of silicon content--Silicon-molybdenum blue photometric method $180.00 via email in 1~3 business day valid
GB/T 2590.4-1981 Zirconium and hafnium oxides--Determination of aluminum content--Chromazurol S-tetradecyl pyridine bromide photometric method $180.00 via email in 1~3 business day valid
GB/T 2590.5-1981 Zirconium and hafnium oxides--Determination of sodium content--Flame atomic absorption spectrophotometric method $180.00 via email in 1~3 business day valid
GB/T 2590.6-1981 Zirconium and hafnium oxides--Determination of titanium content--Diantipyrymethane photometric method $180.00 via email in 1~3 business day valid
GB/T 2590.7-1981 Zirconium and hafnium oxides--Determination of phosphorus content--Ascorbic acid reduced molybdoantimonylphosphoric acid absorption photometric method $180.00 via email in 1~3 business day valid
GB/T 2590.8-1981 Zirconium oxide--Determination of hafnium oxide content--Emission spectrophotometric method $180.00 via email in 1~3 business day valid
GB/T 2590.9-1981 Hafnium oxide--Determination of zirconium oxide content--X-ray fluorescence spectrometric method $180.00 via email in 1~3 business day valid
GB/T 26013-2010 Tin dioxide $120.00 via email in 1~3 business day valid
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