Determination of Biochemical Oxygen Demand (BOD5)

, volumetric pipette - for samples less than 50 ml - or a graduated cylinder for larger sample volumes, measure the proper amount of well-mixed sample into thoroughly cleaned and rinsed 300 ml bottles. **** Dilutions under 3 mL must be made by diluting the waste in a graduated cylinder before pipetting. *** 3. ................
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