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COD Method 410Chemical Oxygen Demand . 6.2 Standard potassium dichromate solution (0.250 N)Dissolve 12.259 g K 2 Cr 2 O 7 , primary standard grade, previously dried at 103 C for two hours, in distilled water and dilute to 1000 mL. 6.3 Sulfuric acid reagentConc.

High range, chemical oxygen demand determinations: COD Digestion Vials, High Range Chemical Oxygen Demand (COD): US EPA approved for wastewater analysis using Hach Method 8000 Method: Reactor Digestion Range: 20 -1500 mg/L COD 150/test Contains mercury. 150/test Contains mercury.

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The Chemical Oxygen Demand (COD) test is widely used as a measure of organic contamination by determining the quantity of oxygen required for oxidation of reduced species including organic matter, in a water sample using a specific oxidizing agent, temperature and time reduction.

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