Fill two BOD bottles completely full of BOD dilution water, being very careful not to introduce air into either bottle. 2. Analyze one bottle for D.O. using the
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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?
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Titration is less equipment-intensive since the only equipment you need is a burette, heating block, and digestion vials. However, the procedure is a little
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