May 20, 2021 This is done in an attempt to reduce the hazardous waste generated and reduce the cost of the test by eliminating the more expensive chemicals.
A COD test typically involves digestion of a water sample in a sealed vial with potassium dichromate and sulfuric acid at 150oC for 2 hours. Why test for COD?
Jan 16, 2013 1:30 Biochemical Oxygen Demand (BOD) Presentation. Chemical Oxygen Demand ... tion periods; tests to determine oxygen-uptake rates; and/or.
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Chemical oxygen demand (COD) relies on chemical oxidation with chromic acid (a strong 2 mL of the sample is pipetted into a COD digestion reagent vial.
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