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Wastewater Treatment Operator Certification Test
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Question Number 7
The BOD test measures the amount of oxygen that is consumed while a sample of wastewater is incubated in the dark at a temperature of _____ °C for _____ days (± _____ hours)
The BOD test measures the amount of oxygen that is consumed while a sample of wastewater is incubated in the dark at a temperature of 20 °C for 5 days (± 3 hours)(USGS Book 9-A7 (Third Edition) Five-Day Biochemical Oxygen Demand)
✔ Correct Answer:
The BOD test measures the amount of oxygen that is consumed while a sample of wastewater is incubated in the dark at a temperature of 20 °C for 5 days (± 3 hours)(USGS Book 9-A7 (Third Edition) Five-Day Biochemical Oxygen Demand)
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