Is the Nessler method for Nitrogen-Ammonia approved for reporting by the USEPA? Can Hach COD vials be used with another manufacturer's instrument?
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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.
COD Digestion Vials, High Range, pk/25 ; Product #: 2125925 ; Unit Price. $54.82. List Price ; Qty in Cart:0 ; Qty in Quote:0.
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