GB/T 33145-2016 Large capacity seamless steel gas cylinders

GB/T 33145-2023 Large capacity seamless steel gas cylinders

GB/T 223.78-2000 Methods for chemical analysis of iron,steel and alloy—Curcumin spectrophotometric method for the determination of boron content GB/T 223.79-2007 Iron and steel—Determination of multi-element contents—X-ray fluorescence spectrometry(Routine method) GB/T 223.80-2007 Iron,steel and alloy—Determination of trace bismuth and arsenic contents—Hydride generation-atomic fluorescence spectrometric method GB/T 223.81-2007 Iron,steel and alloy—Determination of total aluminum and total boron contents—Microwave digestion-inductively coupled plasma mass spectrometric method GB/T 223.82-2007 Steel and iron—Determination of hydrogen content—Inert gas impulse fusion heat conductivity method GB/T 223.82-2018 Steel and iron—Determination of hydrogen content—Thermal conductivity/infrared method after fusion under inert gas GB/T 223.83-2009 Steel and iron—Determination of high sulfur content—Infrared absorption method after combustion in an induction furnace GB/T 223.84-2009 Steel and iron—Determination of titanium content—Diantipyrylmethane spectrophotometric method GB/T 223.85-2009 Steel and iron—Determination of sulfur content—Infrared absorption method after combustion in an induction furnace GB/T 223.86-2009 Steel and iron—Determination of total carbon content—Infrared absorption method after combustion in an induction furnace GB/T 223.87-2018 Iron, steel and alloy—Determination of calcium and magnesium—Inductively coupled plasma mass spectrometric method GB/T 223.88-2019 Iron,steel and alloy—Determination of calcium and magnesium contents—Inductively coupled plasma atomic emission spectrometric method GB/T 223.89-2019 Iron,steel and alloy—Determination of tellurium content—Hydride generation-atomic fluorescence spectrometric method GB/T 223.90-2021 Iron,steel and alloy—Determination of silicon content—Inductively coupled plasma atomic emission spectrometric method GB/T 223.91-2021 Iron,steel and alloy—Determination of copper—2,2′-Biquinoline spectrophotometric method GB/T 223.92-2023 Iron, steel and alloy—Determination of lanthanum, cerium, praseodymium, neodymium and samarium content—Inductively coupled plasma mass spectrometry GB/T 224-1987 Determination of depth of decarburization of steel GB/T 224-2008 Determination of depth of decarburization of steels GB/T 224-2019 Determination of the depth of decarburization of steels GB/T 226-1991 Etch test for macrostructure and defect of steels GB/T 226-2015 Test method for macrostructure and defect of steel by etching GB/T 228.1-2010 Metallic materials—Tensile testing—Part 1:Method of test at room temperature GB/T 228.1-2021 Metallic materials—Tensile testing—Part 1:Method of test at room temperature GB/T 229-1994 Metallic materials—Charpy notch impact test GB/T 229-2007 Metallic materials—Charpy pendulum impact test method GB/T 229-2020 Metallic materials—Charpy pendulum impact test method GB/T 231.1-2002 Metallic materials—Brinell hardness test—Part 1:Test method GB/T 231.1-2009 Metallic materials—Brinell hardness test—Part 1:Test method GB/T 231.1-2018 Metallic materials—Brinell hardness test—Part 1:Test method GB/T 232-1999 Metallic materials—Bend test GB/T 232-2010 Metallic materials—Bend test GB/T 232-2024 Metallic materials—Bend testing method GB/T 1979-2001 Standard diagrams for macrostructure and defect of structural steels GB/T 1979-2025 Evaluation of macrostructural defects in structural steels—Acid etching method and ultrasonic testing method GB/T 3634.1-2006 Hydrogen—Part 1:Industrial hydrogen GB/T 3634.1-2025 Hydrogen—Part 1:Industrial hydrogen GB/T 4336-2002 Standard test method for spark discharge atomic emission spectrometric analysis of carbon and low-Alloy steel(routine method) GB/T 4336-2016 Carbon and low-alloy steel—Determination of multi-element contents—Spark discharge atomic emission spectrometric method (routine method) GB/T 5777-1996 Seamless steel pipe and tubing—Methods for ultrasonic testing GB/T 5777-2008 Seamless steel pipe and tubing methods for ultrasonic testing GB/T 5777-2019 Automated full peripheral ultrasonic testing of seamless and welded(except submerged arc-welded) steel tubes for the detection of longitudinal and/or transverse imperfections GB/T 6394-2002 Metal-methods for estimating the average grain size GB/T 6394-2017 Determination of estimating the average grain size of metal GB 7144-1999 Colored cylinder mark for gases GB/T 7144-2016 Coloured cylinder mark for gases GB/T 7307-2001 Pipe threads with 55 degree thread angle where pressure-tight joints are not made on the threads GB/T 8923.1-2011 Preparation of steel substrates before application of paints and related products—Visual assessment of surface cleanliness—Part 1:Rust grades and preparation grades of uncoated steel substrates and of steel substrates after overall removal of previous coatings GB/T 9251-1997 Method for hydraulic test of gas cylinders GB/T 9251-2011 Methods for hydrostatic test of gas cylinders GB/T 9251-2022 Methods for hydrostatic test of gas cylinders GB/T 9252-2001 Method for cycling test of gas cylinders GB/T 9252-2017 Method for pressure cycling test of gas cylinders GB/T 9452-2003 Testing method for work zone of Heat treatment furnace GB/T 9452-2012 Testing method for working zone of heat treatment furnace GB/T 9452-2023 Test method for qualified work zone of heat treatment furnace GB/T 10561-1989 Steel—Determination of content of non-metallic inclusion—Micrographic method using standard diagrams GB/T 10561-2005 Steel—Determination of content of nonmetallic inclusions—Micrographic method using standards diagrams GB/T 10561-2023 Determination of content of nonmetallic inclusions in steel—Micrographic method using standard diagrams GB/T 11344-1989 Measuring thickness by ultrasonic pulse-echo contact method GB/T 11344-2008 Non-destructive testing—Practice for measuring thickness by ultrasonic pulse-echo contact method GB/T 11344-2021 Non-destructive testing—Ultrasonic thickness measurement GB/T 12137-2002 Method for leakage test of gas cylinders GB/T 12137-2015 Methods for leakage test of gas cylinders GB/T 12137-2025 Methods for leakage test of gas cylinders GB/T 13005-1991 Terminology of gas cylinders GB/T 13005-2011 Terminology of gas cylinders GB/T 13298-1991 Metal—Inspection method of microstructure GB/T 13298-2015 Inspection methods of microstructure for metals GB/T 13299-1991 Steel—Determination of microstructure GB/T 13299-2022 Determination of free cementite,pearlite and Widmanstaten structure in steel GB 15385-1994 Method for hydraulic burst test of gas cylinders GB/T 15385-2011 Method for hydraulic burst test of gas cylinder GB/T 15385-2022 Method for hydraulic burst test of gas cylinder GB 17820-1999 Natural gas GB 17820-2012 Natural gas GB 17820-2018 Natural gas GB 18047-2000 Compressed natural gas as vehicle fuel GB 18047-2017 Compressed natural gas as vehicle fuel GB/T 20066-2006 Steel and iron—Sampling and preparation of samples for the determination of chemical composition GB/T 23907-2009 Non-destructive testing—Shims for magnetic particle testing GB/T 30824-2014 Testing method for temperature uniformity of gas heat treatment furnace NB/T 47008-2017 Carbon steel and alloy steel forgings used in pressure equipment NB/T 47008-2010 Carbon and alloy steel forgings for pressure equipments NB/T 47013.3-2023 Non-destructive testing of pressure equipment - Part 3: Ultrasonic testing NB/T 47013.3-2015 Non-destructive testing of pressure equipment - Part 3: Ultrasonic testing NB/T 47013.4-2015 "Non-destructive testing of pressure equipment - Part 4: Magnetic particle testing" NB/T 47013.5-2015 Non-destructive testing of pressure equipment - Part 5: Penetrant testing TSG R0006-2014 Supervision Regulation on Safety Technology for Gas Cylinder YB/T 4149-2006 Continuously cast round billet for seamless steel tube rolling ASME B1.1 CGA S-1.1