IEC TS 61508-3-1-2016
电气/电子/可编程电子安全相关系统的功能安全. 第3-1部分: 软件要求. 执行全部或部分安全功能的已有软件元素再利用
Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 3-1: Software requirements - Reuse of pre-existing software elements to implement all or part of a safety function