Question

The X90 value for a filtration system is

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 required to reduce population by 90%

d.

the depth of the filter required to reduce population by 99%

Answer: (c).the depth required to reduce population by 90%

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Q. The X90 value for a filtration system is

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