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QB/T 4955-2016 Domestic sanitary insecticide. Insecticide aerosol propellant. Propane and butane via email in VALID please email coc@codeofchina.com for quotation
GB/T 38386-2019 Gas analysis—Determination of oxynitride in gases—The method of Cavity Ring-Down Spectroscopy (USD) via email in 1-3 business day TO BE VALID
GB/T 35860-2018 Gas analysis—Contents of certificates for calibration gas mixtures (USD) via email in 1-3 business day VALID
GB 4962-2008 Technical safety regulation for gaseous hydrogen use (USD) via email in 1-3 business day VALID
GB/T 5832.3-2011 Determination of moisture in gases—Part 3:The method of Cavity Ring-Down Spectroscopy (USD) via email in 1-3 business day VALID
GB/T 34245-2017 Technical code for safety of formic acid preparation from yellow phosphorus tail gas (USD) via email in 1-3 business day VALID
GB/T 17874-2010 Gases for electronic industry-Boron trichloride (USD) via email in 1-3 business day VALID
GB/T 4844-2011 Pure helium,high pure helium and ultra pure helium (USD) via email in 1-3 business day VALID
GB/T 38527-2020 Technologic rules for calibration gas mixtures (USD) via email in 1-3 business day TO BE VALID
GB/T 28123-2011 Industrial helium (USD) via email in 1-3 business day VALID
GB/T 8984.2-1997 Determination of carbon monoxide,carbon dioxide and hydrocarbon in the gases-Part 2:Determination of total content of carbon monoxide,carbon dioxide and hydrocarbon in gases-Gas chromatographic method (USD) via email in 1-3 business day ABOLISHED
GB/T 5828-2006 Xenon via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 26250-2010 Gases for electronic industry—Arsine (USD) via email in 1-3 business day VALID
GB/T 38677-2020 Gas analysis—Measurement procedure and result—Technical requirements for calibration (USD) via email in 1-3 business day TO BE VALID
GB/T 5832.1-2016 Gas analysis—Determination of moisture—Part 1:Electrolytic method (USD) via email in 1-3 business day VALID
GB/T 17874-1999 Gases for electronic industry--Boron trichloride via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 36656-2018 Electronic grade triethylgallium (USD) via email in 1-3 business day VALID
GB/T 35530-2017 Gas mixtures—Gravimetric preparation—Mastering correlations in composition (USD) via email in 1-3 business day VALID
GB/T 34091-2017 Gas for electronic industry—Hexafluoroethane (USD) via email in 1-3 business day VALID
GB/T 35315-2017 Guide for ammonia effluent handling in LED industry (USD) via email in 1 business day VALID
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