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Use COD as a surrogate for BOD and for effluent reporting when regulations allow. Mercury-based COD vials need appropriate environmental disposal.

Hach's USEPA-approved dichromate COD Method is the most widely used chemical oxygen demand (COD) method for NPDES reporting in the.

COD Digestion Vials. Minimize handling of corrosive and toxic chemicals and eliminate pipetting hazardous reagents. 16 mm Test 'N Tube for Hach DR 6000™ and 

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Buy it with ; This item: Hach 2125825 COD Digestion Vials, Low Range, (Pack of 25). $61.68 ; Hach 2105569 DPD Free Chlorine Reagent Powder Pillows, 10 mL, (Pack 

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Hach's COD Digestion Vials (High Range) are used for determination of high range Chemical Oxygen Demand (COD) by the Reactor Digestion method.

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COD Digestion Reagent vials varies. DRB200 Reactor. 1. Light shield or adapter (For information about sample cells, adapters or light shields, refer to.