GB/T 13077-2004 Periodic inspection and evaluation of seamless aluminum alloy gas cylinders

GB 13077-1991 Periodic inspection and evaluation of seamless aluminium alloy gas cylinders

GB/T 13077-2024 Periodic inspection and evaluation of seamless aluminum alloy gas cylinders

GB/T 11640-2001 Seamless aluminium alloy gas cylinder GB/T 230.1-2004 Metallic Rockwell hardness test—Part1:Test method(scales A、B、C、D、E、F、G、H、K、N、T) GB/T 230.1-2009 Metallic materials—Rockwell hardness test—Part 1:Test method(scales A、B、C、D、E、F、G、H、K、N、T) GB/T 230.1-2018 Metallic materials—Rockwell hardness test—Part 1:Test method GB/T 230.2-2002 Metallic rockwell hardness test—Part 2:Verification and calibration of hardness testers(scales A,B,C,D,E,F,G,H,K,N,T) GB/T 230.2-2012 Metallic materials—Rockwell hardness test—Part 2:Verification and calibration of testing machines GB/T 230.2-2022 Metallic materials—Rockwell hardness test—Part 2:Verification and calibration of testing machines and indenters GB/T 230.3-2002 Metallic rockwell hardness test—Part 3:Calibration of hardness reference blocks(scales A,B,C,D,E,F,G,H,K,N,T) GB/T 230.3-2012 Metallic materials—Rockwell hardness test—Part 3:Calibration of reference blocks(scales A,B,C,D,E,F,G,H,K,N,T) GB/T 230.3-2022 Metallic materials—Rockwell hardness test—Part 3:Calibration of reference blocks 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 231.2-2002 Metallic Brinell hardness test—Part 2:Verification and calibration of hardness testers GB/T 231.2-2012 Metallic materials—Brinell hardness test—Part 2:Verification and calibration of testing machines GB/T 231.2-2022 Metallic materials—Brinell hardness test—Part 2:Verification and calibration of testing machines GB/T 231.3-2002 Metallic Brinell hardness test—Part 3:Calibration of hardness reference blocks GB/T 231.3-2012 Metallic materials—Brinell hardness test—Part 3:Calibration of reference blocks GB/T 231.3-2022 Metallic materials—Brinell hardness test—Part 3:Calibration of reference blocks GB/T 231.4-2009 Metallic materials—Brinell hardness test—Part 4:Tables of hardness values GB 7144-1999 Colored cylinder mark for gases GB/T 7144-2016 Coloured cylinder mark for gases GB 8335-1998 Special threads for gas cylinders GB/T 8335-2011 Special threads for gas cylinders GB/T 8336-1998 Special thread gauges for gas cylinders GB/T 8336-2011 Special thread gauges for gas cylinders 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 10878-1999 Special taps of taper threads for gas cylinders GB/T 10878-2011 Special taps of taper threads for gas cylinders GB 12135-1999 Technological specifications for periodic inspection station of gas cylinders GB/T 12135-2016 Technological specification for inspection agency of gas cylinders GB/T 12137-2002 Method for leakage test of gas cylinders GB/T 12137-2015 Methods for leakage test of gas cylinders GB 15382-1994 General technique specifications for cylinder valves GB/T 15382-2009 General specifications of gas cylinder valves GB/T 15382-2021 General specifications of gas cylinder valves GB/T 12135-2025 Technological specification for inspection agency of gas cylinders GB/T 12137-2025 Methods for leakage test of gas cylinders

ISO/CD 10461:1999