【摘要】 推荐了污水和工业废水中ＣＯＤ的快速测定方法，与标准法相比，缩短１．５ｈ的回流时间，节省了水电，以硝酸银代替了硫酸汞，避免了汞污染，扩大了测定范围，具有较好的精密度和准确度，适于大批水样测定，很有推广价值．更多还原

【Abstract】 A method of puick deternination for COD in sewage and industrial wastewater is introduced. The method shorten 1.5h of backflow time than the standard method,save water and electricity, avoid mercury pollution and extend determination scope. It is of good accuracy and precision and suitable for large quantities of water sample.更多还原