浅谈化学耗氧量的测定方法

通过实验数据分析了重铬酸钾快速测定法与经典的标准测定法测定水中化学耗氧量（CODcr）的一致性。用快速法与标准法分别测试了用标准物质所配制的水样及对测定结果进行统计分析，结果表明两种方法间不存在显著差异。而快速法反应时间短、节约水电，具有一定的可行性。

The measurement methods of chemistry oxide consumption

Through test data analyzes the consistence of the fast measurement methods for potassium biehromate and the classic standard measurement for measuring the chemistry oxide consumption in water, using fast method and standard separately test the water sample compounded by standard material, statistics and analyzes the measurement results, which show that the two kinds of methods don＇t exist significant difference, bat the fast method react in short time and save the water and electricity with feasibility.