说明：  IEC61508 英文版，包含保障软硬件安全完整性等级的管理方法、技术手段和流程。是IEC5星级标准，2007年中国等同采用该标准为国家标准。
(The English version of IEC61508, including hardware and software security to protect the integrity of level of management methods, technical means and processes. Is IEC5 stars standards, equivalent to China in 2007 to adopt the standards for national standards.)