功能安全.加工工业部门的安全仪表化系统.第1部分:框架、定义、系统、硬件和软件要求

[中文适用范围]： 给出了安全仪表系统的规范、设计、安装、操作和维护的要求，以便可以放心地将过程放置和/或维护在安全状态。该标准已被制定为 [外文原描述]： gives requirements for the specification, design, installation, operation and maintenance of a safety instrumented system, so that it can be confidently entrusted to place and/or maintain the process in a safe state. This standard has been developed as a process sector implementation of IEC 61508. The contents of the corrigendum of November 2004 have been included in this copy. It has the status of a horizontal standard in accordance with IEC Guide 108.