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The EPA does not allow a modification of the reagents used for reporting purposes. You must use all specified reagents in the COD vial. There are further
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Chemical oxygen demand (COD) is a critical waste treatment measurement in everything from municipal systems to food manufacturing waste streams.
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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?
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