chemical oxygen demand Fundamentals Explained

Once the two hours are completed, turn the digestor block off and allow the vials to remain while in the device for fifteen to 20 minutes to chill. Take out the vials and return them to your vial rack. Warning: the vials will continue to be sizzling.C O D = 8000 ( b ? s ) n T h e   t i c h   m a u   t h u displaystyle COD= frac 8000(b-s)n The ti

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