Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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GB/T 23274.6-2009 Methods for chemical analysis of stannic oxide - Part 6: Determination of sulfate content - Visual turbidimetry method 90.0 via email in 1~3 business day valid
HG/T 3811-2006 Methods of test for bromide for industrial use 140.0 via email in 1~3 business day valid
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 19281-2014 Analytic method for calcium carbonate 460.0 via email in 1~5 business day valid
GB/T 23835.8-2009 Lithium perchlorate anhydrous - Part 8: Determination of potassium and sodium 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 23771-2009 Determination of bulk density for inorganic chemical products 60.0 via email in 1~3 business day valid
GB/T 23772-2009 Inorganic chemicals for industrial use - General method for the determination of total nitrogen content - Nesslers reagent colorimetric method 180.0 via email in 1~3 business day valid
GB/T 23841-2009 Inorganic chemicals for industrial use - General method for the determinations of cadmium - Atomic absorption spectrometry 180.0 via email in 1~3 business day valid
GB/T 23835.11-2009 Lithium perchlorate anhydrous - Part 11: Determination of lead content 120.0 via email in 1~3 business day valid
GB/T 23274.1-2009 Methods for chemical analysis of stannic oxide - Part 1: Determination of stannic oxide content - Potassium iodate titrimetric 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 23834.6-2009 Chemical analysis method for stannous sulfate - Part 6: Determination of iron content - 1 10-phenanthroline spectrophotometry 120.0 via email in 1~3 business day valid
SN/T 0837.2-1999 Method for the determination of moisture in arsenic trioxide for export 184.0 via email in 1~3 business day abolished
GB/T 19282-2014 Analytic method for lithium hexafluorophosphate 210.0 via email in 1~3 business day valid
HG/T 3696.3-2011 Inorganic chemicals for industrical usePreparations of standard and reagent solutions for chemical analysisPart 3: Preparations of reagent solutions 405.0 via email in business day valid
HG/T 3696.2-2011 Inorganic chemicals for industrical usePreparations of standard and reagent solutions for chemical analysisPart 2: Preparations of standard solutions for impurity 295.0 via email in business day valid
GB/T 8570.7-2010 Determination of liquefied anhydrous ammonia—Part 7:Iron content—o-Phenathroline spectrophotometric method 110.0 via email in 1~3 business day valid
YB/T 5325-2006 Method of the determination for the content of sodium ferrocyanide 30.0 via email in 1~3 business day abolished
GB/T 3050-2000 Inorganic chemical products for industrial use;General method for determination of chloride content;Potentiometric method 90.0 via email in 1~3 business day valid
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