用HH-Ⅲ化学耗氧量测定仪测水样的COD

COD of Sewerage Sample Monitoring by HH-Ⅲ ChemicalOxygen-consuming Measurer

对废水化学需氧量测定时,按照国标规定的重铬酸钾法与用HH-Ⅲ化学耗氧量测定仪测定,进行了大量平行试验,对该仪器的适用条件及产生的误差加以分析,并提出了应对措施。

In this article, some parallel tests were carried out to assess the HH-ⅢCOD measuring device for sewerage monitoring. Comparative experiments were also done by international standard method. The suitable condition for high COD sewerage monitoring was discussed. The reason for the error in the experiments was analyzed.