1213-240 Whatman/Cytiva

Grade 113V Qualitative Filter Paper Folded (Prepleated), 240 mm Grade 113V qualitative filter papers Savings in time required to quadrantfold circles to fit conical filter funnels in repetitive or multiple analyses. Decreased overall filtration time because of the extra surface area exposed; the normal slow down of filtration speed due to the loading of particulate is postponed. Increased total loading capacity as more filter area is available. Maintained flow rate due to the reduction in filter paper contact with funnel side and the selfsupporting shape of the filter itself. The prepleating does not significantly affect any of the technical data, and the same figures may be used for the flat circles. Timesaving Whatman qualitative grades are offered in this convenient form, which gives major advantages over flat circles. Very thick and strong filter with creped surface for extremely high loading capacity, particularly in folded form. Fastest flow rate of any qualitative grade. Highly suitable for coarse particles and gelatinous precipitates. Also available in flat stock form as Grade 113. Grade 113V: 30 µm