中华人民共和国国家环境保护标准HJ908-2017水质六价铬的测定流动注射-二苯碳酰二肼光度法Waterquality—Determinationofchromium(VI)—Flowinjectionanalysis(FIA)anddiphenylcarbazidespectrometricmethod（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。2017-12-29发布2018-04-01实施环境保护部发布i目次前言.................................................................................................................................................ii1适用范围.......................................................................................................................................12规范性引用文件...........................................................................................................................13方法原理.......................................................................................................................................14干扰和消除...................................................................................................................................25试剂和材料...................................................................................................................................26仪器和设备...................................................................................................................................37样品...............................................................................................................................................38分析步骤.......................................................................................................................................49结果计算与表示...........................................................................................................................410精密度和准确度.........................................................................................................................511质量保证和质量控制............................................................................................
