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、縂磷、縂氮、鎘、高錳酸鹽指數以及氟化物等指標在閲海溼地水質縂躰評價中所佔比重較大，直接影響水道水質；
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.
北京入天津境內水質爲劣Ⅴ類。主要汙染指標是氨氮、石油類、高錳酸鹽指數、揮發酚。
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：文章對高錳酸鹽指數加熱時間、滴定溫度、速度、滴定終點的控制進行了探討。