The X90 value for a filtration system is;

Biotechnology Engineering (M.Phil./Ph.D.) 2020 Panjab University Entrance Exam With Answers

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41.

A: The time required to reduce microbial population by 90%

B: The time required to traverse survivor curve by one log cycle

C: The depth of the filter required to reduce population by 90%

D: The depth of the filter required to reduce population by 99%

The answer is: C

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