GB/T 44332-2024 Chlorotrifluoroethene

GB/T 33065-2016 Fluorinated olefins for refrigerant use—General method for the determination of acidity GB/T 34237-2017 Fluorinated olefins for refrigerant use—General method for the determination of water GB 190-1990 Labels for packages of dangerous goods GB 190-2009 Packing symbol of dangerous goods GB/T 601-2002 Chemical reagent Preparations of standard volumetric solutions GB/T 601-2016 Chemical reagent—Preparations of reference titration solutions GB/T 603-2002 Chemical reagent—Preparations of reagent solutions for use in test methods GB/T 603-2023 Chemical reagent—Preparations of reagent solutions for use in test methods GB/T 3634.2-2011 Hydrogen—Part 2:Pure hydrogen,high pure hydrogen and ultrapure hydrogen GB/T 4844-2011 Pure helium,high pure helium and ultra pure helium GB 4844.2-1995 Pure helium GB/T 4844.3-1995 High purity helium 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 5100-1994 Welded steel gas cylinders GB/T 5100-2011 Welded steel gas cylinders GB/T 5100-2020 Welded steel gas cylinders 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/T 6682-1992 Water for analytical laboratory use—Specification and test methods GB/T 6682-2008 Water for analytical laboratory use—Specification and test methods GB 7144-1999 Colored cylinder mark for gases GB/T 7144-2016 Coloured cylinder mark for gases GB/T 8170-1987 Rules for rounding off of numberical values GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values GB/T 8979-1996 Pure nitrogen GB/T 8979-2008 Pure nitrogen and high purity nitrogen and ultra pure nitrogen GB/T 9722-2006 Chemical reagent—General rules for the gas chromatography GB/T 10248-2005 Gas analysis—Preparation of calibration gas mixtures—Static volumetric methods GB 14193-1993 Rules for filling of liquefied gas cylinders GB/T 14193-2009 Rules for filling of liquefied gas cylinders GB 15258-1999 General rules for preparation of precautionary label for industrial chemicals GB 15258-2009 General rules for preparation of precautionary label for chemicals GB 16804-1997 Precautionary labels for gas cylinders GB/T 16804-2011 Precautionary labels for gas cylinders GB/T 43306-2023 Gas analysis—Sampling guidelines HG/T 5896-2022 Highly pure air TSG R0005-2011 Supervision Regulation on Safety Technology for Transportable Pressure Vessel TSG 23-2021 Regulation on Safety Technology for Gas Cylinder GB/T 14193.1-2025 Rules for the filling of liquefied gas cylinders—Part1:Industrial gas cylinder GB/T 9722-2023 Chemical reagent—General rules for the gas chromatography GB/T 8979-2025 Pure nitrogen,high purity nitrogen and ultra pure nitrogen GB/T 3634.2-2025 Hydrogen—Part 2:Pure hydrogen,high purity hydrogen and ultra purity hydrogen GB/T 4844-2025 Pure helium,high purity heliun and ultra purity helium