- 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
- 25字
- 2021-04-20 11:17:49
2.1.12 Safety integrity level
The level of safety function that is ranged from SIL1 to SIL4 in an order from low level to high level.
The level of safety function that is ranged from SIL1 to SIL4 in an order from low level to high level.