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Easily conduct up to 150 reagent tests with the COD vials kit (K-7355) from CHEMetrics. All the vials in the set are compatible with our V-2000 photometer.
Digestion is required. 1 Ranges 3 to 150 mg/L COD and 20 to 1500 mg/L COD are USEPA approved for wastewater analyses (Standard Method
The dichromate ion (Cr2O72-) has proven itself to be best suited for general purpose COD and is required in all approved methods. Approved Methods. There are
With the accu-TEST COD System, testing is fast, inexpensive and simple. To determine wastewater strength, simply: Add a wastewater sample to a high-quality
A COD test typically involves digestion of a water sample in a sealed vial with potassium dichromate and sulfuric acid at 150oC for 2 hours.
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Hach's USEPA-approved dichromate COD Method is the most widely used chemical oxygen Mercury-based COD vials need appropriate environmental disposal.
Zero the instrument using the blank vial. Read the samples. Which method is best for me? While both methods are EPA-approved, they have their own advantages and
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