中华人民共和国国家环境保护标准HJ833—2017土壤和沉积物硫化物的测定亚甲基蓝分光光度法Soilandsediment-Determinationofsulfide-Methylenebluespectrophotometricmethod（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2017-07-18发布2017-09-01实施环境保护部?发布目次前言........................................................................ii1适用范围...........................................................................................................................................................12规范性引用文件...............................................................................................................................................13术语和定义.......................................................................................................................................................14方法原理...........................................................................................................................................................15干扰和消除.......................................................................................................................................................16试剂和材料.......................................................................................................................................................27仪器和设备.......................................................................................................................................................48样品........................................................................59分析步骤...........................................................................................................................................................610结果计算与表示............................................................................................................................................