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Evaluation of the Total Carbonaceous Biochemical Oxygen Demand Method, Using a Compensated Recording Respirometer

The total carbonaceous biochemical oxygen demand test is described, and experimental data demonstrating its stoichiometry, precision, and accuracy are presented. The test is more reproducible and faster than the current 5-day biochemical oxygen demand test procedure, and if a respirometer is used, the effects of toxic chemicals, pH changes, and nutrient imbalances can be routinely monitored. The design principles of a multichannel compensated recording respirometer suitable for this test are described.