摘要
按照GB/T 11914-1989的方法,对重铬酸钾法测量工业废水化学需氧量进行测量不确定度的评定。通过对检测过程中重复性测量结果、所使用的计量玻璃量器、标准溶液等影响测量结果的不确定度分量进行定量分析,找出影响测量结果的因素,更好地提高分析准确度。
According GB/T 11914-1989 to evaluate uncertainty for determination of COD in waste water by the dichromate method. Tracking repeatability of measure result, used glass measure, solution and so on, the component uncertainty that affected the result was found out, this enhanced nicety of the COD determination.
出处
《全面腐蚀控制》
2014年第6期37-39,72,共4页
Total Corrosion Control
关键词
废水
化学需氧量
测量不确定度
waste water
chemical oxygen demand
uncertainty
