地表水中化学需氧量、高锰酸盐指数和生化需氧量的实验室间检测比对分析

Comparative analysis of the CODCr, CODMn and BOD5 in surface water between laboratories

为了解检测实验室地表水中“三氧”的检测能力,对3家检测实验室开展了地表水中实验室间比对。实验表明,地表水化学需氧量、高锰酸盐指数和五日生化需氧量分析测定过程中存在较大差异,比对结果不满意。建议检测实验室进一步查找原因,采取相应的预防或纠正措施,提高检测能力。

In order to understand the detection ability of"COD Cr,COD Mn and BOD 5"in surface water of detection laboratories,laboratory comparison of three detection laboratories was carried out in surface water.The experiment shows that there are great differences of COD Cr,COD Mn and BOD 5 which is analysed in surface water,and the comparison results are not satisfactory.It is suggested that the testing laboratories further find out the causes and take corresponding preventive or corrective measures to improve the testing ability.