TEL:+86 0571-28993551
Company News
The Difference Between Permanganate Index and COD Analyzers
Date:2025-08-15 Browse: 140

The permanganate index of water quality is a common indicator mainly used to reflect the pollution of organic and inorganic oxides in water bodies, while COD measures the mass of reducible substances in water that need to be oxidized by chemical methods. Let’s directly and simply understand the differences between permanganate index and COD with everyone. In this chapter, we will focus on learning the differences to note between the CODMn-8000 – Permanganate Index Online Analyzer and the COD-8000 – COD Online Analyzer!

With the improvement of people’s living standards, online water quality monitoring work is receiving increasing attention from everyone! Among them, the permanganate index online analyzer and the COD online analyzer are common monitoring instruments for pollutants. By comparison, you will find that the application scenarios of permanganate index are more rigorous than those of COD. The reason, of course, is that the monitoring methods of these two analyzers are not quite the same. In scenarios with high water concentration, both can achieve accurate measurement. However, if the water concentration is low, the detection of the permanganate index online analyzer will be more accurate, and the data is reliable and practical.

From this, it can be seen that these two products are used to measure the concentration range of water quality, such as industrial wastewater and water quality in lakes and rivers with a lot of suspended solids. At this time, it is recommended to use an online COD analyzer, of course, after meeting your requirements. For low concentrations, such as surface water, drinking water and some domestic sewage, it is more appropriate to use a permanganate index analyzer. It can detect data more reliably.

Before purchasing a product, users should not only consider factors such as price and quality, but also pay attention to the fact that it must be suitable for the usage scenario. Only in this way can a lot of trouble be reduced in the later stage.