Grade: BIO-44
3 micron filter paper
Product Appearance: Good
Filtration Speed: Slow
Ash Content(%): < 0.008
Thickness(mm): 176
Basis Weight(g/m²): 77
Wet Burst(psi): 0.4
Quantitative Cellulose Filter Paper Grade: BIO-44
Description
Description of Quantitative Cellulose Filter Papers Grade 44
Hawach cellulose filter papers are a star product equivalent to Whatman’s Grade 44 with a more competitive price, which has a high retention rate and a slow flow rate (3μm). 3 micron filter paper BIO-44 has lower ash than other filter papers in this series. The efficiency of collecting small particles is slightly lower than that of 2.5 micron filter paper BIO-42, but the flow rate is faster.
Features of 3 micron Filter Paper BIO-44
Equivalent to Whatman Grade 44
Cellulose filter papers
High-purity filters contain 0.009% maximum ash content
3 micron filter paper
Advantages of Laboratory Apparatus Filter Paper Grade 44
Particularly useful for gravimetric analysis
ISO9001 & CE Double approved
Manufactured from alpha-cellulose and high-cotton linters
High purity and consistent performance, the quality is equivalent to Whatman, the price is more competitive
Lowest ashless content: < 0.007%
Laboratory apparatus filter paper
Applications of Quantitative 3 micron Filter Paper Grade 44
Pressure filtration
Ideal for a variety of important analytical filtration steps
Keep very fine particles
Grade Comparison
Hawach Scientific Co., Ltd | Whatman | Advantec | Munktell | Ahlstrom | Macherey Nagel |
---|---|---|---|---|---|
BIO-44 | Grade 44 | 6/4A | 391 | 95 | 640de |
Guide for Filter Paper

Technical Data
Grade | Particle Retention | Product Appearance | Filtration Speed | Ash Content (%) | Basis Weight (g/m2) | Wet Burst (mm H2O) |
---|---|---|---|---|---|---|
BIO-44 | 3μm | Smooth | Slow | <0.007 | 104 | 200 |
Ordering Information
Item # | Description |
---|---|
BIO-44-055 | Quantitative Filter Papers, Grade 44, Slow, 3μm, 55mm, 100pcs/pk |
BIO-44-070 | Quantitative Filter Papers, Grade 44, Slow, 3μm, 70mm, 100pcs/pk |
BIO-44-090 | Quantitative Filter Papers, Grade 44, Slow, 3μm, 90mm, 100pcs/pk |
BIO-44-110 | Quantitative Filter Papers, Grade 44, Slow, 3μm, 110mm, 100pcs/pk |
BIO-44-125 | Quantitative Filter Papers, Grade 44, Slow, 3μm, 125mm, 100pcs/pk |
BIO-44-150 | Quantitative Filter Papers, Grade 44, Slow, 3μm, 150mm, 100pcs/pk |
BIO-44-180 | Quantitative Filter Papers, Grade 44, Slow, 3μm, 180mm, 100pcs/pk |
BIO-44-185 | Quantitative Filter Papers, Grade 44, Slow, 3μm, 185mm, 100pcs/pk |
BIO-44-240 | Quantitative Filter Papers, Grade 44, Slow, 3μm, 240mm, 100pcs/pk |
BIO-44-270 | Quantitative Filter Papers, Grade 44, Slow, 3μm, 270mm, 100pcs/pk |