Why is the test run in the dark or in a black, Civil Engineering

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Why is the test run in the dark or in a black

In a standard five-day BOD test,

a) Why is the BOD bottle stoppered?

b) Why is the test run in the dark (or in a black bottle)?

c) Why is it usually necessary to dilute the sample?

d) Why is it sometimes necessary to seed the sample?

e) Why isn't ultimate BOD measured?

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Civil Engineering: Why is the test run in the dark or in a black

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Civil Engineering: Why is the test run in the dark or in a black

Reference No:- TGS0799045

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