GB/T 16507.7-2022 Water-tube boilers—Part 7:Safety appurtenances and instruments

GB/T 16507.1-2022 Water-tube boilers—Part 1:General requirements GB/T 16507.2-2022 Water-tube boilers—Part 2:Materials GB/T 16507.3-2022 Water-tube boilers—Part 3:Structure design GB/T 16507.4-2022 Water-tube boilers—Part 4:Strength calculation of pressure parts GB/T 16507.5-2022 Water-tube boilers—Part 5:Fabrication GB/T 16507.6-2022 Water-tube boilers—Part 6:Inspection, testing and acceptance GB/T 16507.8-2022 Water-tube boilers—Part 8:Installation and operation

GB/T 16507.7-2013 Water-tube boilers—Part 7:Safety appurtenances and instruments

GB/T 1239.2-2009 Cold coiled helical springs technical specifications—Part 2:Compressions spring GB/T 12228-1989 General purpose industrial valves—Specification of carbon steel forgings GB/T 12228-2006 General purpose industrial valves—Specification of carbon steel forgings GB/T 12229-1989 General purpose industrial valves—Specification of carbon steel castings GB/T 12229-2005 General purpose industrial valves—Specification of carbon steel castings GB/T 12230-1989 General purpose industrial valves—Specification of austenitic steel castings GB/T 12230-2005 General purpose industrial valves—Specification of stainless steel castings GB/T 12230-2023 General purpose industrial valves—Specification of stainless steel castings GB/T 12241-2005 Safety valves—General requirements GB/T 12241-2021 Safety valves—General requirements GB/T 12242-2005 Performance test code—Pressure relief devices GB/T 12242-2021 Pressure relief devices—Performance test code GB/T 16507.1-2013 Water-tube boilers—Part 1:General requirement GB/T 16507.1-2022 Water-tube boilers—Part 1:General requirements GB/T 16507.2-2013 Water-tube boilers—Part 2:Materials GB/T 16507.2-2022 Water-tube boilers—Part 2:Materials GB/T 16507.4-2013 Water-tube boilers—Part 4:Strength calculation of pressure parts GB/T 16507.4-2022 Water-tube boilers—Part 4:Strength calculation of pressure parts GB/T 20438.1-2006 Functional safety of electrical/electronic/programmable electronic safety-related systems—Part 1:General requirements GB/T 20438.1-2017 Functional safety of electrical/electronic/programmable electronic safety-related systems—Part 1:General requirements GB/T 20438.2-2006 Functional safety of electrical/electronic/programmable electronic safety-related systems—Part 2:Requirements for electrical/electronic/programmable electronic safety-related systems GB/T 20438.2-2017 Functional safety of electrical/electronic/programmable electronic safety-related systems—Part 2:Requirements for electrical/electronic/programmable electronic safety-related systems GB/T 20438.3-2006 Functional safety of electrical/electronic/programmable electronic safety-related systems—Part 3:Software requirements GB/T 20438.3-2017 Functional safety of electrical/electronic/programmable electronic safety-related systems—Part 3:Software requirements GB/T 20438.4-2006 Functional safety of electrical/electronic/programmable electronic safety-related systems—Part 4:Definitions and abbreviations GB/T 20438.4-2017 Functional safety of electrical/electronic/programmable electronic safety-related systems—Part 4:Definitions and abbreviations GB/T 20438.5-2006 Functional safety of electrical/electronic/programmable electronic safety-related systems—Part 5:Examples of methods for the determination of safety integrity levels GB/T 20438.5-2017 Functional safety of electrical/electronic/programmable electronic safety-related systems—Part 5:Examples of methods for the determination of safety integrity levels GB/T 20438.6-2006 Functional safety of electrical/electronic/programmable electronic safety-related systems—Part 6:Guidelines on the application of GB/T 20438.2 and GB/T 20438.3 GB/T 20438.6-2017 Functional safety of electrical/electronic/programmable electronic safety-related systems—Part 6:Guidelines on the application of GB/T 20438.2 and GB/T 20438.3 GB/T 20438.7-2006 Functional safety of electrical/electronic/programmable electronic safety-related systems—Part 7:Overview of techniques and measures GB/T 20438.7-2017 Functional safety of electrical/electronic/programmable electronic safety-related systems—Part 7:Overview of techniques and measures GB/T 21109.1-2007 Functional safety—Safety instrumented systems for the process industry sector—Part 1:Framework,definitions,system,hardware and software requirements GB/T 21109.1-2022 Functional safety of safety instrumented systems in the process industry sector—Part 1:Framework,definitions,system,hardware and application programming requirements GB/T 21109.2-2007 Functional safety—Safety instrumented systems for the process industry sector—Part 2:Guidelines for the application of GB/T 21109.1 GB/T 21109.2-2023 Functional safety of safety instrumented systems for the process industry sector—Part 2:Guidelines for the application of GB/T 21109.1—2022 GB/T 21109.3-2007 Functional safety—Safety instrumented systems for the process industry sector—Part 3:Guidance for the determination of the required safety integrity levels GB/T 23934-2009 Hot coiled helical compression springs—Technical specifications GB/T 23934-2015 Hot formed helical compression springs—Technical Requirement DL/T 5428-2023 N/A NB/T 47063-2017 Power plant safety valve GB 50116-2013 Code for design of automatic fire alarm system GB 50229-2019 Standard for design of fire protection for fossil fuel power plants and substations DL/T 5428-2009 Technical code for design of I&C protection system in fossil fuel power plant GB/T 12228-2025 General purpose industrial valves—Technical specification for carbon steel forgings GB/T 12229-2025 General purpose industrial valves—Technical specification for carbon steel castings GB/T 21109.3-2026 Functional safety of safety instrumented systems in the process industry sector—Part 3:Guidance for the determination of the required safety integrity levels