GB/T 21109.3-2007 过程工业领域安全仪表系统的功能安全 第3部分:确定要求的安全完整性等级的指南 Functional safety—Safety instrumented systems for the process industry sector—Part 3:Guidance for the determination of the required safety integrity levels
Functional safety—Safety instrumented systems for the process industry sector—Part 3:Guidance for the determination of the required safety integrity levels