GB/T 20936.3-2017 Gas detectors for explosive atmospheres—Part 3:Guidance on functional safety of fixed gas detection systems

GB/T 20936.1-2017 Gas detectors for explosive atmospheres—Part 1:Performance requirements of detectors for flammable gases GB/T 20936.2-2017 Gas detectors for explosive atmospheres—Part 2:Selection，installation,use and maintenance of detectors for flammable gases and oxygen GB/T 20936.4-2017 Gas detectors for explosive atmospheres—Part 4:Performance requirements of open path detectors for flammable gases

GB/T 20936.1-2017 Gas detectors for explosive atmospheres—Part 1:Performance requirements of detectors for flammable gases GB/T 20936.2-2017 Gas detectors for explosive atmospheres—Part 2:Selection，installation,use and maintenance of detectors for flammable gases and oxygen GB/T 20936.4-2017 Gas detectors for explosive atmospheres—Part 4:Performance requirements of open path detectors for flammable gases GB/T 18268.1-2010 Electrical equipment for measurement,control and laboratory use—EMC requirements—Part 1:General requirements 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 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 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 18268.1-2025 Electrical equipment for measurement,control and laboratory use—EMC requirements—Part 1:General requirements 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

IEC 60079-29-3:2014