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Nov 20, 2020 · For the detailed steps of the chemical oxygen demand test, first add 2 mL of water or fresh water sample to a 16mm COD Test Tube containing digestion agent and catalyst. Cover the tube with a polypropylene lined polypropylene tube and heat it in a block digester at 150°C for 2 hours.
21. COD Vials Rack: To be stainless steel rack for holding COD vials and test ‘N tube vials, holding min. capacity of 10 vials. 22. COD Digestion Solution (0-150ppm):Low range chemical Oxygen Demand (COD) reagent for reactor digestion method range 1-150mg/l COD, Pack of 25 vials, EPA approved. 23.
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