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The document provides instructions for analyzing chemical oxygen demand (COD) using two different methods - the classic COD cuvette test and the HT-COD test. Key steps include adding a sediment sample to the cuvette, heating the sample to digest oxidizable substances, allowing the sample to cool, and then measuring the reduction in dichromate color to determine the COD concentration. The HT-COD test uses a higher temperature and shorter digestion time than the classic method.

Author

mougal

Language

EN