GB 27898.1-2011 Fixed water supply equipment used for fire-protection—Part 1:Gas pressure fixed water supply equipment used for fire-protection

GB 27898.2-2011 Fixed water supply equipment used for fire-protection—Part 2:Constant pressure automatic water supply equipment used for fire-protection GB 27898.3-2011 Fixed water supply equipment used for fire-protection—Part 3:Pressure boosting and stabilizing type water supply equipment used for fire-protection GB 27898.4-2011 Fixed water supply equipment used for fire-protection—Part 4:Gas driven fixed water supply equipment used for fire-protection GB 27898.5-2011 Fixed water supply equipment for fire-protection—Part 5:Dual power fixed water supply equipment used for fire-protection

GB 150-1998 Steel pressure vessels GB/T 150.1-2011 Pressure vessels—Part 1:General requirements GB/T 150.1-2024 Pressure vessels—Part 1:General requirements GB/T 150.2-2011 Pressure vessels—Part 2:Materials GB/T 150.2-2024 Pressure vessels—Part 2:Materials GB/T 150.3-2011 Pressure vessels—Part 3:Design GB/T 150.3-2024 Pressure vessels—Part 3:Design GB/T 150.4-2011 Pressure vessels—Part 4:Fabrication,inspection and testing,and acceptance GB/T 150.4-2024 Pressure vessels—Part 4:Fabrication,inspection and testing,and acceptance GB/T 528-1998 Rubber,vulcanized or thermoplastic—Determination of tensile stress-strain properties GB/T 528-2009 Rubber,vulcanized or thermoplastic—Determination of tensile stress-strain properties GB/T 3047.1-1995 Series of basic dimensions of panels, rack and cabinets for vertical increment of 20mm GB/T 3222.2-2009 Acoustics—Description,measurement and assessment of environmental noise—Part 2:Determination of environmental noise levels GB/T 3222.2-2022 Acoustics—Description,measurement and assessment of environmental noise—Part 2:Determination of sound pressure levels GB/T 3797-2005 Electrical control assemblies GB/T 3797-2016 Electrical control assemblies GB 4208-1993 Degrees of protection provided by enclosure (IP code) GB/T 4208-2008 Degrees of protection provided by enclosure(IP code) GB/T 4208-2017 Degrees of protection provided by enclosure(IP code) GB 5135.7-2003 Automatic sprinkler system—Part 7:Water flow indicator GB 5135.7-2018 Automatic sprinkler systems—Part 7:Water flow indicators GB 5135.10-2006 Automatic sprinkler system—Part 10:Pressure switch GB 6245-1998 Performance requirements and test methods for fire pumps GB 6245-2006 Fire pumps GB 7251.1-1997 Low-voltage switchgear and control gear assemblies—Part 1:Type-tested and partially type-tested assemblies GB 7251.1-2005 Low-voltage switchgear and control gear assemblies—Part 1:Type-tested and partially type-tested assemblies GB/T 7251.1-2013 Low-voltage switchgear and controlgear assemblies—Part 1:General rules GB/T 7251.1-2023 Low-voltage switchgear and controlgear assemblies—Part 1:General rules CJ/T 160-2002 Backflow preventers CJ/T 160-2010 Double check valve backflow prevention assembly TSG R0004-2009 Supervision Regulation on Safety Technology for Stationary Pressure Vessel GB/Z 150-2025 Guide for magnetizing behaviour of permanent magnets