Chemical oxygen demand (COD) is defined as the amount of a mixed reagents from manufacturer before use. Determine COD values ... Standard 10-mL ampules.
CHEMetrics, Inc., manufactures a quality, cost-effective line of reagent vials for performing Chemical Oxygen Demand (COD) analysis. Both USEPA-Approved and
Brand Name, Hach Company ; Included Components, Vial ; National Stock Number, 6640-01-300-6510 ; Number of Items, 25 ; Part Number, 2125925.
1 Ranges 3 to 150 mg/L COD and 20 to 1500 mg/L COD are USEPA approved for Run all tests (the samples and the blank) with the same lot of vials.
Hach 2415915 COD Digestion Vial, High Range+ (Pack of 150): Amazon.com: Hach 2105569 DPD Free Chlorine Reagent Powder Pillows, 10 mL, (Pack of 100.
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BDH COD Vials used in determination of Chemical Oxygen Demand (COD)Determine Easy to Use; Mercuric formulation follows EPA approved method; Low Range, ...
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.
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
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