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:
| Cat. No. |
Diameter (mm.) |
Qty. |
| 10311841 |
Qualitative Filter Paper, 70 mm |
100/pk |
| 10311842 |
Qualitative Filter Paper, 90 mm |
100/pk |
| 10311843 |
Qualitative Filter Paper, 110 mm |
100/pk |
| 10311844 |
Qualitative Filter Paper, 125 mm |
100/pk |
| 10311845 |
Qualitative Filter Paper, 150 mm |
100/pk |
| 10311847 |
Qualitative Filter Paper, 185 mm |
100/pk |
| 10311851 |
Qualitative Filter Paper, 240 mm |
100/pk |
| 10311852 |
Qualitative Filter Paper, 270 mm |
100/pk |
| 10311853 |
Qualitative Filter Paper, 320 mm |
100/pk |
| 10311854 |
Qualitative Filter Paper, 385 mm |
100/pk |
| 10311856 |
Qualitative Filter Paper, 500 mm |
100/pk |