Grade 597 ½ Qualitative Filter Paper Folded (Prepleated)

A prepleated filter used for a wide variety of analytical routine applications in different industries like food testing (e.g., determination of fat content) or removal of carbon dioxide and turbidity from beverages (e.g., beer analysis).

• 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.

Grade 597 ½: 4-7 µm

A medium fast filter paper with medium to fine particle retention. Used for a wide variety of analytical routine applications in different industries like food testing (e.g., determination of fat content) or removal of carbon dioxide and turbidity from beverages (e.g., beer analysis).

Specifications:

• Grade: Grade 597 ½
• Grade Type: Folded (Prepleated)
• Particle Retention in Liquid Max.: 7 µm
• Typical Thickness: 180 µm
• Basis Weight: 85g/m²
• Filtration Speed (Herzberg)    Approx.: 70s
• Material: Cellulose
• Alpha Cellulose Content Min.: 98%
• Properties: Medium fast

Ordering Information: