Answer:The nominal pore size is 0.2 µm.
Answer:The OE 66 membrane consists of cellulose acetate.
Answer:OE 66 is 0.2 µm; OE 67 is 0.45 µm. Both are 47 mm cellulose acetate discs in this selection.
Whatman OE 66 cellulose acetate membrane circles provide a 0.2 µm nominal pore size for fine liquid filtration in compatible 47 mm membrane holders. The hydrophilic cellulose acetate membrane is suitable for workflows specifying this polymer and pore-size combination, including controlled sample filtration and laboratory membrane evaluation. Each package contains 100 membrane circles. OE 66 is the fine-pore option within the OE 66/OE 67 cellulose acetate pair; OE 67 has a 0.45 µm nominal pore size. Laboratories can use this distinction to select consistent supplies for a documented filtration procedure. The nominal pore size alone does not validate a complete sterilizing-filtration process, which also depends on the setup and application-specific testing.
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