For determination of high range Chemical Oxygen Demand (COD) by the Reactor Digestion method. US EPA approved for wastewater analysis using Hach Method 8000
Hach's USEPA-approved dichromate COD Method is the most widely used chemical oxygen demand (COD) method for NPDES reporting in the world.
Use care when seating a vial into the COD/ TNT adapter (for COD vials Outside the U.S.A.—Contact the Hach office or distributor serving you.
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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.
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Sample Cell: 1" Round Glass 10mL.
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Use care when seating a vial into the COD/ TNT adapter (for COD vials Transfer 10 mL to another sample cell (use fill mark) for analysis.
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For free chlorine determination by the DPD Free Chlorine method. USEPA accepted for reporting for drinking water analysis using Hach Method 8021.
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