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HG/T 3501-2011 Chemical reagent-Determination of the effective plate number of solid support in a gas chromatography via email in VALID please email coc@codeofchina.com for quotation
GB 15346-2012 Chemical reagent—Packaging and marking 300 (USD) via email in 1-3 business day VALID
GB 15346-1994 Chemical reagent Packaging and marking via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB 610.2-1988 Chemical reagent-General method for the determination of arsenic (AgDDTC) 75 (USD) via email in 1-3 business day ABOLISHED
HG/T 3500-2011 Chemical reagent-Test method for polarity constant of liquid stationary phase in gas chromatography 120 (USD) via email in 1-3 business day VALID
GB 9737-1988 Chemical reagent-General rules for the measurement of readily carbonizable substances 90 (USD) via email in 1-3 business day ABOLISHED
HG/T 3776-2005 Feed grade mono-dicalcium phosphate 90 (USD) via email in 1-3 business day VALID
GB 10737-2007 working chemical—General rules for assay—Weight titration (potentiometric method) via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
HG/T 4297-2012 The Guide for Drafting in Report of Gas Reference Materials 90 (USD) via email in 1-3 business day VALID
HG 3-1168-1978 45 (USD) via email in 1-3 business day ABOLISHED
HG 3-119-1983 via email in ABOLISHED please email coc@codeofchina.com for quotation
HG/T 4103-2009 Chemical reagent-General method for the determination of organic nitrogen compounds via email in VALID please email coc@codeofchina.com for quotation
HG/T 3775-2005 Feed grade cobalt sulfate 105 (USD) via email in 1-3 business day VALID
SN/T 1037-2002 Method for the determination of lime nitrogen for import and export via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
HG/T 3500-1982 30 (USD) via email in 1-3 business day ABOLISHED
HG/T 3921-2006 Chemical reagent-Regulations for sampling and acceptance 75 (USD) via email in 1-3 business day VALID
GB 605-1988 Chemical reagent-General method for the measurement of colour(in Hazen units) 75 (USD) via email in 1-3 business day ABOLISHED
GB 9725-1988 Chemical reagent-General rules for potentiometric titration 105 (USD) via email in 1-3 business day ABOLISHED
HG/T 3501-1982 45 (USD) via email in 1-3 business day ABOLISHED
GB 6851-2008 pH primary reagent - General rules for certification 240 (USD) via email in 1-3 business day VALID
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