摘要
按照HJ 828-2017的方法,对重铬酸盐法测量工业废水化学需氧量进行测量准确度的评定。通过分析检测过程中的重复性测量结果、计量玻璃器皿、试剂、实验环境、标准溶液、分析人员等因素对测量结果造成的不确定性,分别进行定量分析,找出影响测量结果的因素,全面的提高分析准确度。
According to the method of HJ 828-2017, the measurement accuracy of COD in industrial wastewater by dichromate method was evaluated. By analyzing the uncertainty of measurement results caused by repetitive measurement results, measuring glassware, reagents, experimental environment, standard solution, analysts and other factors in the detection process, quantitative analysis is carried out to find out the factors affecting the measurement results and improve the accuracy of analysis comprehensively.
引文
[1] 国家环境保护总局.水和废水监测分析方法(第四版增补版)[M].北京:中国环境出版社,2002.
[2] HJ 828-2017,水质化学需氧量的测定重铬酸盐法[S].