中华人民共和国国家环境保护标准HJ899-2017水质总β放射性的测定厚源法Water quality—Determination of gross beta activity—Thick source method（发布稿）本电子版为发布稿请以中国环境出版社出版的正式标准文本为准2017-12-21发布2018-02-01实施发布环境保护部目次前言.................................................................................................................................................ii1适用范围.......................................................................................................................................12规范性引用文件...........................................................................................................................13术语和定义...................................................................................................................................14方法原理.......................................................................................................................................25试剂和材料...................................................................................................................................26仪器和设备...................................................................................................................................27样品...............................................................................................................................................38分析步骤.......................................................................................................................................49结果计算与表示...........................................................................................................................510精密度和准确度.........................................................................................................................611质量保证和质量控制.................................................................................................................612废物处理..............................................................................................................