Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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GB/T 23945-2009 Inorganic chemicals for industrial use—General method for the determination of chloride content—Visible turbidimetric method 120.0 via email in 1~3 business day valid
GB/T 8570.6-2010 Determination of liquefied anhydrous ammonia—Part 6:Oil content—Gravimetric and infra-red methods 110.0 via email in 1~3 business day valid
GB/T 23948-2009 Inorganic chemicals for industrial use—General method for the determination of water insoluble matter 100.0 via email in 1~3 business day valid
GB/T 29338-2012 Production technical regulation for phosphoric acid(wet-process) 260.0 via email in 1~3 business day valid
GB/T 8570.2-2010 Determination of liquefied anhydrous ammonia—Part 2:Estimating of ammonia content 120.0 via email in 1~3 business day valid
GB/T 16753-1997 Terms for silicate building products 225.0 via email in 1~3 business day valid
GB/T 23274.2-2009 Methods for chemical analysis of stannic oxide - Part 2: Determination of iron content - 1,10-phenanthroline photometric method 110.0 via email in 1~3 business day valid
GB/T 23842-2009 General method for the determination of silicon content of inorganic chemicals - Reduced molybdosilicate spectrophotometric method 180.0 via email in 1~3 business day valid
GB/T 19282-2014 Analytic method for lithium hexafluorophosphate 210.0 via email in 1~3 business day valid
GB/T 12737-1991 Chemical products for industrial use-General method for determination of traces of sulfate by reduction and titrimetry 135.0 via email in 1~3 business day abolished
GB/T 23940-2009 Analytical methods of persulfate products for industrial use 120.0 via email in 1~3 business day valid
HG/T 3696.2-2002 Inorganic chemical products Preparations of standard solutions for chemical analysis 180.0 via email in 1~3 business day abolished
GB/T 30906-2014 Determination of sodium tripolyphosphate content of sodium tripolyphosphate―Ion chromatography 90.0 via email in 1~3 business day valid
GB/T 3049-2006 Chemical products for industrial use - General method for determination of iron content - 1 10-Phenanthroline spectrophotometric method 140.0 via email in 1~3 business day valid
GB/T 8570.4-2010 Determination of liquefied anhydrous ammonia—Part 4:Residue content—Titrimetric method 90.0 via email in 1~3 business day valid
GB/T 23835.12-2009 Lithium perchlorate anhydrous - Part 12: Determination of total nitrogen content 120.0 via email in 1~3 business day valid
GB/T 8570.5-2010 Determination of liquefied anhydrous ammonia—Part 5:Water content—Karl Fishcer method 110.0 via email in 1~3 business day valid
GB/T 23835.9-2009 Lithium perchlorate anhydrous - Part 9: Determination of calcium content 120.0 via email in 1~3 business day valid
GB/T 23761-2009 Test method of photocatalytic materials for air purification 180.0 via email in 1~3 business day valid
GB/T 27803-2011 Analysis method for solid composition releasing chorine dioxide 150.0 via email in 1~3 business day valid
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