1.Grade: BIO-5
2.Filtration Speed: Slow
3.Pore sizes: 2.5μm
4.Disc: 50, 70, 90, 110, 125, 150, 180, 200, 220, 240, 250, 270, 300, 320, 350, 400, 450, 600mm or OEM
Availability: In Stock
Description of No. 5 Filter Paper:
Hawach BIO No. 5 filter paper is equivalent to Whatman grade 5 with high particle retention within the qualitative range. And made of cotton fibers.
Features of HAWACH No. 5 Filter Paper:
- Equivalent Grade 5: Pore size 2.5μm, slow flow rate, particle retention capacity is finer than No. 41 filter paper and No. 6 filter paper.
- The most efficient qualitative filter paper.
- Cellulose filter paper is made of high-quality cotton fibers.
- A variety of filter papers with different flow rates are available to meet the needs of a wide range of laboratory users.
- HAWACH 2.5 micron filter paper has advanced production experience and technology, and papermaking skills have reached a very high level, has a wide range of filter paper production lines
- And each No. 5 filter paper has its own unique characteristics so that customers can choose the most optimized filter paper according to their filtration requirements.
- The highest quality natural materials are used to ensure consistently high quality, reproducibility, and uniformity of every filter paper produced.
- Each 2.5 micron filter paper is rigorously tested before leaving the factory, including weight, thickness, gas flow rate, and mechanical strength.
- In addition, individual parameters, such as particle retention, capillary action rate, filtration characteristics, appearance properties, etc., can also be determined on demand.
Application:
- The fine precipitate encountered during chemical analysis was collected.
- Chemical analysis, clarification of suspended solids and water, soil analysis.
Selection Guide for Filter Paper

Grade Comparison
Hawach | Whatman | Advantec | Munktell | Ahlstrom | Macherey Nagel |
---|---|---|---|---|---|
BIO-5 | Grade 5 | 235 | 293/120H | 610 | 619eh |
Technical Data
Grade | Particle Retention | Product Appearance | Filtration Speed | Ash Content (%) | Basis Weight (g/m2) | Wet Burst (mm H2O) |
---|---|---|---|---|---|---|
BIO-5 | 2.5μm | Smooth | Slow | <0.1 | 84 | > 180 |
Ordering Information
Item # | Description | No. | pore size | flow rate | diameter | pack |
BIO-5-050 | Qualitative Filter Paper | Grade 5 | 2.5μm | Slow | 50mm | 100pcs/pk |
BIO-5-070 | 70mm | |||||
BIO-5-090 | 90mm | |||||
BIO-5-110 | 110mm | |||||
BIO-5-125 | 125mm | |||||
BIO-5-150 | 150mm | |||||
BIO-5-180 | 180mm | |||||
BIO-5-200 | 200mm | |||||
BIO-5-220 | 220mm | |||||
BIO-5-240 | 240mm | |||||
BIO-5-250 | 250mm | |||||
BIO-5-270 | 270mm | |||||
BIO-5-300 | 300mm | |||||
BIO-5-320 | 320mm | |||||
BIO-5-350 | 350mm | |||||
BIO-5-400 | 400mm | |||||
BIO-5-450 | 450mm | |||||
BIO-5-600 | 600mm |
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