T/CECS 10165-2021 Underground town gas pressure regulating installation

GB 50235-2010 Code for construction and acceptance of industrial metallic piping GB 50236-2011 Code for construction and acceptance of field equipment, industrial pipe welding engineering GB/T 50493-2019 Specification for design of combustible gas and toxic gas detection and alarm for petrochemical industry CJ/T 180-2003 Manually operated gas valves for use in house CJ/T 180-2014 Manually operated gas valves for gas installations of buildings CJ/T 335-2010 Slam-shut valves and relief valves for city gas CJ/T 514-2018 Metal valves for gas transmission HG/T 20679-2014 Design code for external corrosion protection of chemical equipment and piping JB/T 11492-2013 Copper ball valve and stop valve for gas pipeline NB/T 10558-2021 Pressure vessel coating and transportation packaging NB/T 47013.1-2015 Non-destructive testing of pressure equipment - Part 1: General requirements 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 47013.4-2015 "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 NB/T 47013.6-2015 Non-destructive testing of pressure equipment - Part 6: Eddy current testing NB/T 47013.7-2012 Nondestructive testing of pressure equipments-Part 7:Visual examination NB/T 47013.8-2012 Nondestructive testing of pressure equipments-Part 8:Leak Testing NB/T 47013.8-2025 Non-destructive testing of pressure equipment - Part 8: Leakage testing NB/T 47013.9-2012 Nondestructive testing of pressure equipments-Part 9:Acoustic emission testing NB/T 47013.10-2015 Non-destructive testing of pressure equipment - Part 10: Ultrasonic testing using time-of-flight diffraction method NB/T 47013.10-2010 Nondestructive testing of pressure equipments-Part 10:Ultrasonic time of flight diffraction technique NB/T 47013.11-2023 Non-destructive testing of pressure equipment - Part 11: Digital imaging detection using X-ray technology NB/T 47013.11-2015 Non-destructive testing of pressure equipment - Part 11: X-ray digital imaging testing NB/T 47013.12-2015 Non-destructive testing of pressure equipment - Part 12: Magnetic flux leakage testing NB/T 47013.13-2015 Non-destructive testing of pressure equipment - Part 13: Impulse eddy current testing NB/T 47013.14-2023 Non-destructive testing of pressure equipment - Part 14: X-ray computer-aided imaging inspection NB/T 47013.14-2016 Non-destructive testing of pressure equipment - Part 14: X-ray computer-aided imaging detection NB/T 47013.15-2021 NB/T 47013.15-2021 Nondestructive testing for pressure equipment - Part 15: Phased array ultrasonic testing NB/T 47013.16-2024 NB/T 47013.16-2024 Nondestructive testing of pressure equipment Part 16: Infrared thermal imaging testing NB/T 47013.17-2024 NB/T 47013.17-2024 Nondestructive testing for pressure equipment - Part 17: Magnetic-memory testing NB/T 47013.18-2024 NB/T 47013.18-2024 Nondestructive testing for pressure equipment - Part 18: Array eddy current testing NB/T 47013.21-2025 Non-destructive testing of pressure equipment - Part 21: Detection using alternating electromagnetic fields NB/T 47015-2023 Stress vessel welding procedure NB/T 47018.1-2017 Welding Material for Pressure Equipment Ordering Technical Specification Part 1: Purchase General Rules NB/T 47018.1-2011 Technical permission of welding materials for pressure equipment Section 1:General rule NB/T 47018.2-2017 The technical requirements for ordering welding materials for pressure equipment Part 2: Steel welding rods NB/T 47018.2-2011 Technical permission of welding materials for pressure equipment Section 2:Electrodes for steel NB/T 47018.3-2017 Specifications for Welding Materials for Pressure Equipment - Part 3: Gas-protected Electric Arc Welding Wire and Filler Wire NB/T 47018.3-2011 Technical permission of welding materials for pressure equipment Section 3:Steel electrodes and rods for gas shielded arc welding NB/T 47018.4-2017 Specification for Welding Materials for Pressure Equipment Part 4: Filler Steel Welding Wire and Welding Solder for Submerged-Arc Welding NB/T 47018.4-2011 Technical permission of welding materials for pressure equipment Section 4:Electrodes and fluxes for submerged arc welding NB/T 47018.5-2017 "Specifications for welding materials used in pressure equipment - Part 5: Stainless steel welding strips and welding fluxes for overlay welding" NB/T 47018.5-2011 Technical permission of welding materials for pressure equipment Section 5:Stainless steel strip electrodes and fluxes for overlay welding NB/T 47018.6-2011 Technical permission of welding materials for pressure equipment Section 6:Bare aluminum and aluminum-alloy welding electrodes and rods NB/T 47018.7-2011 Technical permission of welding materials for pressure equipment Section 7:Titanium and titanium-alloy welding electrodes and rods SY/T 0556-2018 SY/T 0556-2018 Fast Switching Blind Plate Technical Specification SY/T 0556-2010 Quick switching blind plate technology specification SY/T 0556-1999 Quick on/off blind plate TSG D0001-2009 Pressure Pipe Safety Technology Supervision Regulation for Industrial Pressure Pipe TSG 21-2016 Supervision Regulation on Safety Technology for Stationary Pressure Vessel