potassium permanganate index

基本解释

The percentage of Ammoniac azote, TP, TN, Cd, potassium permanganate index and fluoride which have much effect on water quality is big and the variation tendency is great.
氨氮、总磷、总氮、镉、高锰酸盐指数以及氟化物等指标在阅海湿地水质总体评价中所占比重较大，直接影响水道水质；
The quality of the water from Beijing to Tianjin is worse than Grade V. The key pollution indicators are ammonia nitrogen, petroleum, potassium permanganate index and volatile phenol.
北京入天津境内水质为劣Ⅴ类。主要污染指标是氨氮、石油类、高锰酸盐指数、挥发酚。
This article discusses the acidic potassium permanganate method of permanganate index from the following aspects: heating time, titrate temperature and titrate speed, end point of titration.
前言：文章对高锰酸盐指数加热时间、滴定温度、速度、滴定终点的控制进行了探讨。