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1·The key pollution indicators are ammonia nitrogen, petroleum, potassium permanganate index and volatile phenol.

主要污染指标是氨氮、石油类、高锰酸盐指数、挥发酚。

2·Through the tests of standard samples, the degree of affecting permanganate index by these 5 factors are investigated.

通过环境标准样品的分析试验，考察这5个因素对高锰酸盐指数的影响程度。

3·However the application of permanganate index automatic analyzer needs further acquaintance and improvement in practical application.

但在实际应用过程中，该仪器仍有许多问题需要进一步认识与改进。

4·The permanganate index measuring chamber has small liquid drop titrated, short reaction time, low consumption of reagents and high accuracy.

本实用新型滴定的液滴小、 反应时间短、试剂用量少且精度高。

5·The purpose of studying the correlation of total organic carbon (TOC) with permanganate index and chemical oxygen demand (COD) has been stated.

叙述了研究总有机碳与高锰酸盐指数及化学需氧量相关关系的目的。

6·The result indicated that the main pollution target of this section is permanganate index, five days' biochemical oxygen demand and ammonia nitrogen.

评价结果表明：该段主要污染指标高锰酸盐指数、五日生化需氧量、氨氮。

7·The uncertainty of measurement was evaluated for the determination of permanganate index of water by the method of GB 11892-1989, the acidic potassium permanganate method.

对GB 11892 - 1989《水质高锰酸盐指数的测定》中酸性高锰酸钾氧化法测定水中高锰酸盐指数的测量不确定度进行了评定。

8·According to the discussion on the principles and methods of permanganate index determination, the causes of making errors during the course of determination have been analyzed.

通过对高锰酸盐指数测定原理和方法的探讨，分析在高锰酸盐指数测定过程中产生误差的原因。

9·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。

10·Permanganate number index of Jing river is much higher than those of other rivers.

泾河水体的高锰酸盐指数远高于其他河流；