环境监测实验指导手册目录实验一样品的采集、保存及预处理...........................................................................1一实验目的和要求................................................................................................1二水样的采集........................................................................................................1实验二废水悬浮固体和色度的测定...........................................................................3一实验目的和要求................................................................................................3二悬浮固体的测定................................................................................................3三色度的测定........................................................................................................4实验三溶解氧和生化需氧量的测定...........................................................................6一实验目的和要求................................................................................................6二溶解氧的测定....................................................................................................6三BOD的测定.......................................................................................................7实验四化学需氧量的测定...........................................................................................9一实验目的和要求................................................................................................9二重铬酸钾法（CODCr）.....................................................................................9实验五氨氮的测定.....................................................................................................12一实验目的和要求..............................................................................................12二纳氏试剂比色法..............................................................................................12实验六水中铬的测定................................................................................................15一实验目的和要求..............................................................................................15二六价铬的测定..................................................................................................15三总铬的测定......................................................................................................16实验七环境噪声监测.................................................................................................19一实验目的和要求..............................................................................................19二测量条件..........................................................................................................19三测定步骤..........................................................................................................19四数据处理..........................................................................................................19五注意事项..........................................................................................................20环境监测实验指导手册实验一样品的采集、保存及预处理一实验目的和要求掌握采样点布设的原则，现场指标的测定以及样品的保存和预处理二水样的采集在水质分析中，对水样取样的基本要求是所取得的样品应具有代表性和有效性。（一）采样点布设1.采样断面布设...
