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GB/T 23841-2009 Inorganic chemicals for industrial use - General method for the determinations of cadmium - Atomic absorption spectrometry (USD) via email in 1-3 business day VALID
GB/T 23943-2009 Inorganic chemicals for industrial use—General method for the determination of chromium(Ⅵ) content—1 5-Diphenylcarbohydrazide spectrophotometric method (USD) via email in 1-3 business day VALID
GB/T 23834.1-2009 Chemical analysis method for stannous sulfate - Part 1: Determination of stannous sulfate content - Volumetric method of potassium dichromate (USD) via email in 1-3 business day VALID
GB/T 8570.2-2010 Determination of liquefied anhydrous ammonia—Part 2:Estimating of ammonia content (USD) via email in 1-3 business day VALID
GB/T 23951-2009 Inorganic chemicals for industrial use—General method for the determination of residue after ignition (USD) via email in 1-3 business day VALID
GB/T 19282-2014 Analytic method for lithium hexafluorophosphate (USD) via email in 1-3 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 via email in VALID please email coc@codeofchina.com for quotation
GB/T 12684-2018 Boron compound for industrial use—Methods of test (USD) via email in 1-3 business day VALID
GB/T 23762-2009 Test method of photocatalytic materials for purification of water solution (USD) via email in 1-3 business day VALID
GB/T 23835.4-2009 Lithium perchlorate anhydrous - Part 4: Determination of water insoluble matter content (USD) via email in 1-3 business day VALID
GB/T 27569-2011 Production technical regulation for Hydrofluoric acid (USD) 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 (USD) via email in 1-3 business day VALID
GB/T 23768-2009 Inorganic chemicals for industrial use - General rules for flame atomic absorption spectrometry (USD) via email in 1-3 business day VALID
GB/T 36384-2018 Determination of mercury in inorganic chemical product—Atomic fluorescence spectrometry (USD) 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 via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 23761-2009 Test method of photocatalytic materials for air purification (USD) via email in 1-3 business day VALID
GB/T 23947.1-2009 Inorganic chemicals for industrial use—General method for determination of arsenic—Part 1:Silver diethyldithiocarbamate photometric method (USD) via email in 1-3 business day VALID
GB/T 23852-2009 Analytical method of thiocyanate for industrial use (USD) via email in 1-3 business day VALID
YB/T 5325-2006 Method of the determination for the content of sodium ferrocyanide (USD) via email in 1-3 business day ABOLISHED
GB/T 16753-1997 Terms for silicate building products via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
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