高氯低有机物废水CODCr测定方法的标准研究

程龙军,彭娟,杨柳荫,安晓英

Determination method standard of CODCr in wastewater with high chlorine and low organic matter

Longjun CHENG,Juan PENG,Liuyin YANG,Xiaoying AN

表3 含氯离子质量分数8%的CODCr标样测定结果

Table 3 The results of CODCr standard samples with 8% chlorine ion

序号 CODCr/(mg·L-1) RSD% 1 2 3 4 5 6 7 8 9 10 平均 标样① 107.1 101.2 98.2 98.2 97.0 92.2 92.2 95.2 97.7 5.02 标样② 49.7 48.3 47.3 52.2 53.6 53.6 47.6 53.3 50.7 5.47 标样③ 32.8 32.8 35.2 30.3 35.7 32.7 35.7 29.8 32.7 35.7 33.3 6.58