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GB/T 23950-2009 Inorganic chemicals for industrial use—General method for determination of heavy metals (USD) via email in 1-3 business day VALID
GB/T 23770-2009 Liquid inorganic chemical products - General method for the measurement of colour (USD) via email in 1-3 business day VALID
GB/T 23765-2009 Test method of sodium cyanide and potassium cyanide products (USD) via email in 1-3 business day VALID
GB/T 31197-2014 Inorganic chemicals for industrial use—Determination of impurity anions—Ion chromatography method (USD) via email in 1-3 business day VALID
GB/T 23944-2009 Inorganic chemicals for products use—General method for the determination of aluminium—Chromazurol S-spectrophotometric method (USD) via email in 1-3 business day VALID
GB/T 23835.6-2009 Lithium perchlorate anhydrous - Part 6: Determination of chlorate content (USD) via email in 1-3 business day VALID
HG/T 3736-2013 Hydroxylammonium chloride for industrial use (USD) via email in 1-3 business day VALID
GB/T 33425-2016 Evaluation method of anti-caking capacityof anti-caking agent for chemical product (USD) via email in 1 business day VALID
GB/T 21525-2008 Inorganic chemical products for industrial use - General method for determination of magnesium content by complexation titration (USD) via email in 1-3 business day VALID
GB/T 27803-2011 Analysis method for solid composition releasing chorine dioxide (USD) via email in 1-3 business day VALID
GB/T 23835.10-2009 Lithium perchlorate anhydrous - Part 10: Determination of iron content (USD) via email in 1-3 business day VALID
HG/T 3696.1~3696.3-2011 via email in VALID please email coc@codeofchina.com for quotation
GB/T 23948-2009 Inorganic chemicals for industrial use—General method for the determination of water insoluble matter (USD) via email in 1-3 business day VALID
GB/T 23835.11-2009 Lithium perchlorate anhydrous - Part 11: Determination of lead content (USD) via email in 1-3 business day VALID
GB/T 23834.2-2009 Chemical analysis method for stannous sulfate - Part 2: Determination of insoluble substance in hydrochloric acid - Gravimetric method (USD) 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 via email in VALID please email coc@codeofchina.com for quotation
GB/T 23941-2009 Analytical methods of calcium chloride for industrial use (USD) via email in 1-3 business day VALID
GB/T 30904-2014 Inorganic chemicals for industrial use—Crystal form analysis—X-ray diffraction method (USD) via email in 1-3 business day VALID
GB/T 23949-2009 Inorganic chemicals for industrial use—General method for the determination of dry residue after evaporation (USD) via email in 1-3 business day VALID
GB/T 23834.4-2009 Chemical analysis method for stannous sulfate - Part 4: Determination of lead and copper content - Flame atomic absorption spectrometry (USD) via email in 1-3 business day VALID
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