GB 6249-2025 2025.05.01-《核动力厂环境辐射防护规定》

ICS 13.280 F 72 中华人民共和国国家标准 GB 6249—2025 代替 GB 6249—2011 核动力厂环境辐射防护规定 Regulations for environmental radiation protection of nuclear power plant 本电子版为正式标准文本，由生态环境部环境标准研究所审校排版。 2025⁃01⁃21 发布 2025⁃05⁃01 实施 生 态 环 境 部 发布 国家市场监督管理总局 GB 6249—2025 目次 前言··························································································································Ⅱ 1 适用范围·················································································································1 2 规范性引用文件········································································································1 3 术语和定义··············································································································1 4 辐射防护总体要求·····································································································3 5 场址选择要求···········································································································3 6 运行状态下的辐射防护要求·························································································4 7 事故工况下的辐射防护要求·························································································5 8 流出物排放管理和流出物监测······················································································5 9 辐射环境监测···········································································································6 10 放射性固体废物管理································································································7 11 核动力厂的退役······································································································7 附录 A （资料性附录） 轻水堆核动力厂选址假想事故源项确定基本假设···································8 附录 B （资料性附录） 小型模块化核动力厂选址假想事故源项确定推荐方法····························10 附录 C （资料性附录） 不同热功率反应堆的流出物年排放量控制值调整方法····························11 附录 D （规范性附录） 液态流出物中的放射性核素活度浓度推荐值········································12 附录 E （资料性附录） 轻水堆核动力厂典型设计基准事故类别··············································13 Ⅰ