An indispensable indicator for online bod cod analyzer

The reducing substances in water include various organic substances, nitrites, sulfides, and ferrous salts. But the main thing is organic matter. Therefore, chemical oxygen demand (COD) is often used as an index to measure the amount of organic matter in the water. The greater the chemical oxygen demand, the more serious the pollution of the water body by organic matter. The online bod cod analyzer is very important.

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