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

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

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Hach 2125925 COD Digestion Vial, High Range (Pack of 25): Amazon.com: Amazon Business : Discover discounts and FREE shipping on work supplies.

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

Hach Company COD Digestion Vials, High Range, pk/150. Manufacturer: Hach Company 2125915. Encompass_Preferred. For determination of 

Method · Reactor Digestion ; Range · 0-150 mg/L COD ; Page 1 ; Special offers and product promotions. Amazon Business : Discover discounts and FREE shipping on work