Cytiva® Qualitative Filter Paper, Grade 1574, Folded (Prepleated/ Fluted Circle), 100mm, 100 per pack

A medium fast filter paper with high wet strength. This paper has the same chemical resistance characteristics as Grade 1573.

• Savings in time required to quadrant-fold 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 self-supporting 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.

Time-saving Whatman qualitative grades are offered in this convenient form, which gives major advantages over flat circles.

Specifications:

• Basis Weight: 90 g/m²
• Diameter: 110 mm
• Filtration Speed (Herzberg): Approx. 85 s
• Grade: Grade 1574
• Grade Type: Folded (prepleated/fluted circle)
• Particle Retention in Liquid Max.: 12 µm
• Properties: Medium fast filter paper with high wet strength, very low fiber release. This paper has the same chemical resistance characteristics as Grade 1573.
• Typical Thickness: 160 µm