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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Our vials are packaged in spectrally uniform 16mm glass cells that fit right into your COD reactor. Each vial is verified against NIST standards to assure the
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For samples with a concentration of 0 to 150 mg/L, use the low range COD vials. For higher concentrations, the high range COD vials (0-1500 mg/L) should be
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These vials are contained in spectrally uniform 16mm glass cells that fit exactly into your COD reactor. Ensure quality in your application as our COD vials are
