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  • Dissolved oxygen is measured by the Winkler titration method.
  • BOD5 is measured by putting a known volume of bacteria in a sample of the fluid to be insppected at the saturation point of oxygen, keeping it at a specified temperature for 5 fays then measuring the oxygen content.
Both procedures are found in the "Standard Methods for the Examination of Water and Wastewater"
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Q: How are DO and BOD content measured?
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