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GB/T 36090-2018 Gas analysis—Guide for quality assurance of on line automatic measuring system (USD) via email in 1 business day VALID
GB/T 10607-2001 Methods for compiling product models of air separation plants via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
HG/T 3633-1999 Pure methane (USD) via email in 1-3 business day VALID
GB/T 14605-1993 Determination of trace argon, nitrogen and krypton in oxygen-Gas chromatographic method via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 14852-1993 Determination of trace oxygen in gases-Phosphor chemiluminescence method via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 31058-2014 Gases for electronic industry―Silicon tetrafluoride (USD) via email in 1 business day VALID
GB 4844.2-1995 Pure helium (USD) via email in 1-3 business day ABOLISHED
GB/T 15909-2017 Gas for electronic industry—Silane (USD) via email in 1-3 business day VALID
GB/T 14602-2014 Gases for electronic industry—Hydrogen chloride (USD) via email in 1-3 business day VALID
GB/T 14604-1993 Gases for electronic industry. Oxygen (USD) via email in 1-3 business day ABOLISHED
JB/T 9078.2-1999 Performance test methods for natural gas separation plants via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 34236-2017 Technical guideline for methanol preparation from carbon dioxide (USD) via email in 1-3 business day VALID
JB/T 8693-1998 large and medium scale air separation p;ants via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 4844.1-1995 Industrial helium (USD) via email in 1-3 business day ABOLISHED
GB/T 18994-2014 Gases for electronic industry—High purity chlorine (USD) via email in 1-3 business day VALID
GB/T 26249-2010 Gases for electronic industry—Hydrogen selenide (USD) via email in 1-3 business day VALID
GB/T 35995-2018 Carbon monoxide (USD) via email in 1-3 business day VALID
GB/T 8981-1988 Determination of trace hydrogen in gases-Gas chromatographic method (USD) via email in 1-3 business day ABOLISHED
GB/T 31987-2015 Gas for electronic industry—Germane (USD) via email in 1-3 business day VALID
GB/T 26251-2010 Fluorine and mixed gases of fluorine-nitrogen (USD) via email in 1-3 business day VALID
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