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13:21
YouTube
MicroChem's Experiments
Determination of Chemical Oxygen Demand (COD)-A Complete Procedure (Dichromate Mercury Free Method)
The chemical oxygen demand (COD) is a measure of water and wastewater quality. The COD test is often used to monitor the efficiency of a water treatment plant. This is the complete procedure of determination of COD of industrial waste water sample. In this video we used the "Dichromate Mercury Free" method ...
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