GB/T 14601-1993 Gases for electronic industry—High purity ammonia

GB/T 14601-2009 Gas for electronic industry—Ammonia

GB 10625 GB 14606 GB 190-1990 Labels for packages of dangerous goods GB 190-2009 Packing symbol of dangerous goods GB/T 5099-1994 Seamless steel gas cylinders GB/T 5099.1-2017 Seamless steel gas cylinders—Part 1:Quenched and tempered steel cylinders with tensile strength less than 1 100 MPa GB/T 5099.3-2017 Seamless steel gas cylinders—Part 3:Normalized cylinders GB/T 5099.4-2017 Seamless steel gas cylinders—Part 4:Seamless stainless steel gas cylinders GB/T 5831-1986 Determination of trace oxygen in the gases—Colorimetric method GB/T 5831-2011 Determination of trace oxygen in the gases—Colorimetric method GB/T 6285-2003 Determination of trace oxygen in gases—Eletrochemical method GB/T 6285-2016 Determination of trace oxygen in gases—Electrochemical method GB 7144-1999 Colored cylinder mark for gases GB/T 7144-2016 Coloured cylinder mark for gases GB/T 7445-1995 Pure hydrogen and high pruity hydrogen and ultra pure hydrogen GB/T 8980-1996 High purity nitrogen GB/T 8984-2008 Determination of carbon monoxide,carbon dioxide and hydrocarbon in gases—Gas chromatographic method GB/T 8984.1-1997 Determination of carbon monoxide,carbon dioxide and hydrocarbon in the gases—Part 1:Determination of carbon monoxide,carbon dioxide and mathane in the gases—Gas chromatographic method 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 GB/T 8984.3-1997 Determination of carbon monoxide,carbon dioxide and hydrocarbon in the gases—Part 3:Determination of total hydrocarbon in gases—Flame ionization method GB/T 8984-2025 Gas analysis—Determination of the contents of trace carbon monoxide, carbon dioxide and hydrocarbon in gases—Gas chromatography with flame ionization detector