- GB/T 50770-2013 石油化工安全仪表系统设计规范（英文版）
- 中华人民共和国住房和城乡建设部
- 26字
- 2021-04-20 11:17:47
2.1.4 Safety life cycle
A whole time duration from the start of the concept design to all safety instrumented functions are no longer available for use.
A whole time duration from the start of the concept design to all safety instrumented functions are no longer available for use.