Determination of Biochemical Oxygen Demand (BOD5)

(200 ml of original dilution water is equal to 203 ml of dilution water plus reagents.) Titrate two of the three samples. Results should be within 0.1 mL if using a buret with increments of 0.05 mL. Calibrate the DO probe with the third bottle. Standardization of DO meter - Air calibrations. ................
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