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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. Why test for COD?
The EPA does not allow a modification of the reagents used for reporting purposes. You must use all specified reagents in the COD vial. There are further
CHEMetrics, Inc., manufactures a quality, cost-effective line of reagent vials for performing Chemical Oxygen Demand (COD) analysis. Both USEPA-Approved and
Alternatively, use borosilicate ampules, 10-mL capacity, 19- to 20-mm diam. Digestion vessels with premixed reagents and other accesso- ries are available from
For 250–15,000 mg/L vials: Use a TenSette Pipet to add. 0.20 mL of sample to the vial. 2. Oxygen Demand, Chemical, Dichromate Method (multi-range: 40.0, 150,
Recommended COD test for wastewater effluent. The Chemical Oxygen Demand analysis provides important information for the water treatment process and is
BOD (biochemical oxygen demand); COD (chemical oxygen demand) Two vials are then marked for the wastewater sample to make a duplicate run.
