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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.
COD testing is a good better indicator of organic pollutants in industrial wastewater containing cyanides and heavy metals. COD testing affords rapid
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Performing chemical oxygen demand testing is important in determining wastewater treatment effectiveness and can help diagnose any problems in treatment.
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Due to this, the COD is one of the most frequently analyzed wastewater parameters globally. Why should you use Hach TNTplus® COD tests? Hach TNTplus COD vial
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Hach's USEPA-approved dichromate COD Method is the most widely used chemical oxygen US EPA approved for wastewater analysis using Hach Method 8000.
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Ask the Expert: COD Analysis for Drinking Water Question: Why is Chemical Oxygen Demand (COD) a useful parameter for drinking water
