Answer:No. It is the plain, ungridded 0.45 µm version.
Answer:Use a holder designed for 47 mm membrane discs.
Answer:Each pack contains 100 tab-free PES membrane discs.
Pall Supor PES membrane discs offer 0.45 µm nominal pore size in a plain, ungridded 47 mm membrane format. The hydrophilic polyethersulfone medium is suited to general laboratory liquid-filtration procedures that specify PES membrane chemistry and this pore-size grade. Each disc is supplied without a handling tab, and the pack contains 100 pieces for repeated sample filtration or membrane trials. This plain version is distinct from the gridded 0.45 µm Supor PES disc and is preferable when a printed surface grid is unnecessary or incompatible with the analytical workflow. Fit the disc into a compatible holder and assess the required chemical compatibility, sample loading, and retention performance for the procedure.
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