GB/T 38100-2019 Refrigerant blends R407 series

GB/T 7376-2008 Determination of micro-amounts of water in industrial fluorinated alkane 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 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/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 9722-2006 Chemical reagent—General rules for the gas chromatography GB 14193-1993 Rules for filling of liquefied gas cylinders GB/T 14193-2009 Rules for filling of liquefied gas cylinders GB/T 31400-2015 Fluorinated alkane—Determination of non condensable gas(NCG)—Gas chromatography GB/T 31401-2015 Fluorinated alkane—Determination of chloride(Cl-)—Turbidimetry GB/T 33065-2016 Fluorinated olefins for refrigerant use—General method for the determination of acidity GB/T 33066-2016 Fluorinated olefins for refrigerant use—General method for the determination of high-boiling residues GB/T 37994-2019 General rules for sampling blend TSG R4002-2011 Transportable Pressure Vessel Filling Licensing Regulation 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