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FANN FILTER PAPER API 3.5 in DIA (9CM) 100/BOX
This filter paper is a calendared, hardened, qualitative low-ash filter paper used to filter fine precipitates with the following qualities:
- A very slow, extra dense paper made from 100% cotton linters
- Lint-free surface
- Highly resistant to acid and alkaline solutions.
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Typical Properties
Basis Weight | 92 (g / m2) |
Caliper | .137 (mm) |
Densometer | 172.3 (Gurley secs / 100 cc air 0.1 sq. in) |
Water absorbency | .9 Klemm (1/16 inch / min.) 8.9 (g / 100 cm2) |
Wet Strength | 75 psi |
Particle Retention
All paper grades are described by the type of particles retained, in accordance with ASTM Standard Methods. The particle size retention range for this paper is 2-5μm (microns). The filter paper meets or exceeds the standards established by the American Petroleum Institute as published in API Recommended Practice 13B-1 and API Recommended Practice 13B-2.
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