AS 5013.14.2 pdf download – Food microbiology Method 14.2: General procedures and techniques—Colony count—Membrane filtration method The method involves passing a liquid sample through a membrane of known physicalproperties. Microorganisms in the sample are retained on the membrane which is thenplaced on a filter pad saturated with liquid medium, or on solid medium, and incubated.Colonies, corresponding to the viable organisms...