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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.

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.

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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.

Results 1 - 20 of 60 Hach calibration pH buffers are available in a variety of color-coded or colourless solutions, in different packaging types and sizes from ...

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COD Digestion Vials, Low Range Method: Reactor Digestion Chemical Oxygen Demand (COD): US EPA approved for wastewater analysis using Hach Method 8000 Range: 

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