What filter paper would you recommend for pre-filtering a solution with lint that's gonna be filtered via membrane for bioburden determination?

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Mohammed Ashikur Rahman Popular answer

Karen A. Darbinyan You are right

Phil Geis

Suggest you need to validate that you can recover an inoculum on the second membrane filter. That may be difficult.

Karen A. Darbinyan

Hello, if you want to completely remove fungal spores your pre-filtering should be performed by membrane filtration system with 0.22 or 0.45 um nylon or polyester filter.

Alaa Raheem Kazim

Karen A. Darbinyan I agree with you

Following

Prefiler ar 0.22 - 0,45 will remove almost of your microorganisms - fungi and bacteria.

I agree with Phil Geis