GB/T 44986-2024 Turbine compressors for natural gas transmission plant

GB 755-2000 Rotating electrical machines—Rating and performance GB/T 755-2008 Rotating electrical machines—Rating and performance GB/T 755-2019 Rotating electrical machines—Rating and performance GB/T 755-2025 Rotating electrical machines—Rating and performance GB/T 755.2-2003 Methods for determining losses and efficiency of rotating electrical machinery from tests(excluding machines for traction vehicles) GB/T 1174-1992 Cast bearing metals GB/T 1174-2022 Cast bearing alloy GB/T 3141-1994 Industrial liquid lubricants—ISO viscosity classification GB/T 3767-1996 Acoustics—Determination of sound power levels of noise sources using sound pressure—Engineering method in an essentially free field over a reflecting plane GB/T 3767-2016 Acoustics—Determination of sound power levels and sound energy levels of noise sources using sound pressure—Engineering methods for an essentially free field over a reflecting plane GB 3836.5-2004 Electrical apparatus for explosive gas atmosphere—Part 5:Pressurized enclosures"p" GB/T 3836.5-2017 Explosive atmospheres—Part 5:Equipment protection by pressurized enclosure"p" GB/T 3836.5-2021 Explosive atmospheres—Part 5:Equipment protection by pressurized enclosure "p" GB/T 5677-1985 Methods of radiographic testing and classification of radiographs for steel castings GB/T 5677-2007 Radiographic testing for steel castings GB/T 5677-2018 Castings—Radiographic testing GB/T 7233.2-2010 Steel castings—Ultrasonic examination—Part 2:Steel castings for highly stressed components GB/T 7233.2-2023 Steel castings—Ultrasonic testing—Part 2:Steel castings for highly stressed components GB/T 9239.1-2006 Mechanical vibration—Balance quality requirements for rotors in a constant(rigid)state—Part 1:Specification and verification of balance tolerances GB/T 9443-1988 Methods of liquid penetrant testing and classification of indication for steel castings GB/T 9443-2007 Penetrant testing for steel castings GB/T 9443-2019 Steel and iron castings—Liquid penetrant inspection GB/T 9444-1988 The methods for magnetic particle testing and for specifying quality levels of steel castings GB/T 9444-2007 Magnetic particle testing for steel castings GB/T 9444-2019 Steel and iron castings—Magnetic particle inspection GB/T 13384-1992 General specifications for packagings of mechanical and electrical products GB/T 13384-2008 General specifications for packing of mechanical and electrical product GB 17820-1999 Natural gas GB 17820-2012 Natural gas GB 17820-2018 Natural gas GB/T 18329.1-2001 Plain bearings—Non-destructive ultrasonic testing of bond for metallic multilayer plain bearings GB/T 18329.1-2023 Plain bearings—Metallic multilayer plain bearings—Part 1:Non-destructive ultrasonic testing of bond of thickness greater than or equal to 0.5 mm GB/T 18329.3-2021 Plain bearings—Metallic multilayer plain bearings—Part 3:Non-destructive penetrant testing GB 18613-2002 Limited values of energy efficiency and evaluating values of energy conservation of small and medium three-phase asynchronous motors GB 18613-2006 Minimum allowable values of energy efficiency and the energy efficiency grades for small and medium three-phase asynchronous motors GB 18613-2012 Minimum allowable values of energy efficiency and energy efficiency grades for small and medium three-phase asynchronous motors GB 18613-2020 Minimum allowable values of energy efficiency and values of efficiency grades for motors GB/T 20801.1-2006 Pressure piping code—Industrial piping—Part 1:General GB/T 20801.1-2020 Pressure piping code—Industrial piping—Part 1:General GB/T 20801.1-2025 Pressure piping code—Part 1:Industrial piping GB/T 20801.2-2006 Pressure piping code—Industrial piping—Part 2:Materials GB/T 20801.2-2020 Pressure piping code—Industrial piping—Part 2:Materials GB/T 20801.3-2006 Pressure piping code—Industrial piping—Part 3:Design and calculation GB/T 20801.3-2020 Pressure piping code—Industrial piping—Part 3:Design and calculation GB/T 20801.4-2006 Pressure piping code—Industrial piping—Part 4:Fabrication and assembly GB/T 20801.4-2020 Pressure piping code—Industrial piping—Part 4:Fabrication and assembly GB/T 20801.5-2006 Pressure piping code—Industrial piping—Part 5:Inspection and testing GB/T 20801.5-2020 Pressure piping code—Industrial piping—Part 5:Inspection and testing GB/T 20801.5-2025 Pressure piping code—Part 5:Hydrogen piping and pipelines GB/T 20801.6-2006 Pressure piping code—Industrial piping—Part 6:Safeguarding GB/T 20801.6-2020 Pressure piping code—Industrial piping—Part 6:Safeguarding GB/T 25630-2010 Turbocompressors—Performance test code GB 31571-2015 Emission standard of pollutants for petroleum chemistry industry GB/T 37400.12-2019 Heavy mechanical general technical specification—Part 12:Painting GB/T 42601.1-2023 Petroleum,petrochemical and natural gas industries—Lubrication,shaft-sealing and control-oil systems and auxiliaries—Part 1:General requirements GB 50251-2015 Code for design of gas transmission pipeline engineering JB/T 2977-2005 Industrial fan, blower, and compressor terminology NB/T 47013.2-2015 Non-destructive testing of pressure equipment - Part 2: Radiographic testing 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 47013.5-2015 Non-destructive testing of pressure equipment - Part 5: Penetrant testing ISO 6368 ISO 10438-2 ISO 10439-1:2015 ISO 10439-2:2015 ISO 10441 ISO 13691