Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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GB/T 17874-2010 Gases for electronic industry-Boron trichloride 150.0 via email in 1~3 business day valid
GB/T 32386-2015 Gases for electronic industry―Tungsten hexaflouride 255.0 via email in 1~3 business day valid
GB/T 14851-2009 Gas for electronic industry - Phosphine 150.0 via email in 1~3 business day valid
HG/T 2537-1993 Carbon Dioxide for Welding Usage 150.0 via email in 1~3 business day valid
GB/T 31058-2014 Gases for electronic industry―Silicon tetrafluoride 90.0 via email in 1~3 business day valid
GB/T 26249-2010 Gases for electronic industry—Hydrogen selenide 240.0 via email in 1~3 business day valid
GB/T 10628-2008 Gas analysis - Comparison methods for determining and checking the composition of calibration gas mixtures 420.0 via email in 1~5 business day valid
GB/T 26251-2010 Fluorine and mixed gases of fluorine-nitrogen 180.0 via email in 1~3 business day valid
GB/T 5831-2011 Determination of trace oxygen in the gases—Colorimetric method 180.0 via email in 1~3 business day valid
GB/T 3634.2-2011 Hydrogen—Part 2:Pure hydrogen,high pure hydrogen and ultrapure hydrogen 180.0 via email in 1~3 business day valid
GB/T 14601-2009 Gas for electronic industry-Ammonia 180.0 via email in 1~3 business day valid
GB/T 33774-2017 Gas for electronic industry-Propylene 70.0 via email in 1~3 business day valid
HG/T 3661.1-1999 Burning gases for welding and cutting - propene 30.0 via email in 1~3 business day abolished
HB 5412-1988 Argon Gas Used in Heat Treatment 75.0 via email in 1~3 business day valid
GB/T 5275.7-2014 Gas analysis―Preparation of calibration gas mixtures using dynamic volumetric methods―Part 7:Thermal mass-flow controllers 210.0 via email in 1~3 business day valid
GB/T 35315-2017 Guide for ammonia effluent handling in LED industry 105.0 via email in 1~3 business day valid
GB/T 5275.6-2014 Gas analysis―Preparation of calibration gas mixtures using dynamic volumetric methods―Part 6:Gritical orifices 170.0 via email in 1~3 business day valid
GB/T 33360-2016 Gas analysis―Guidelines for purification of gases for trace analysis instrument 240.0 via email in 1~3 business day valid
GB/T 5829-1995 Krypton 60.0 via email in 1~3 business day superseded
HG/T 3661.2-1999 Burning gases for welding and cutting - propane 30.0 via email in 1~3 business day superseded
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