ICS 27.120.10 CCS F 65 GB 中华人民共和国国家标准 GB/T 11807—2021 代替GB/T11807—2008 核电厂安全重要松脱部件声学监测 系统的特性、设计和运行规程 Characteristics,design and operational procedures for acoustic monitoring systems of loose parts detection important to safety in nuclear power plants (IEC60988:2009,Nuclearpowerplants—Instrumentationimportantto safetyAcoustic monitoring systemsfor detection of loose parts: characteristics,design criteria and operational procedures,MOD) 2021-12-31发布 2022-07-01实施 国家市场监督管理总局 发布 国家标准化管理委员会