


Qualitative Filter Paper Grade: BIO-2
Equivalent to Whatman Grade 2
Particle Retention: 8μm
Product Appearance: Smooth
Filtration Speed: Medium
Ash Content(%): <0.06
Thickness(mm): 190
Basis Weight(g/m2): 103
Wet Burst(psi): 0.7
Description of Filter Paper Grade 2
BIO-2 8 μm paper filter is equivalent to Whatman Grade 2 and has slightly stronger retention than BIO 1, but the filtration time is relatively longer (that is, the filtration speed is relatively slow), and it is more adsorbing. In addition to the ordinary filtration of particles, its additional adsorption performance also comes in handy, such as intercepting soil nutrients in plant growth experiments, monitoring special pollutants in the air and soil, etc.
Advantage of Filter Paper Grade 2
- All passed the CE & ISO certificates;
- High-intensity performance and excellent interception ability;
- The lowest ashless leads to accurate testing results;
- Easy-To-Go design, convenient for many users.
Features
- Whatman Grade 2 quality and specifications;
- Medium retention with pore size 8um;
- All the diameter and OEM size is accepted.
Applications
- Monitor specific pollutants in air and soil tests;
- Intercept soil nutrients in plant growth experiments;
- Ideal for clarification and removal of sediment for qualitative analysis and preparation;
- In the retention medium in the crystallization, faster flow rate, smooth surface, and normal hardness.
Grade Comparison
| Hawach Scientific Co., Ltd | Whatman | Advantec | Munktell | Ahlstrom | Macherey Nagel | Sartorius |
|---|---|---|---|---|---|---|
| BIO-2 | Grade 2 | 232 | No.2/150 | 642 | 616 | 292a |
Guide for Filter Paper

Technical Data
| Grade | Particle Retention | Product Appearance | Filtration Speed | Ash Content (%) | Basis Weight (g/m2) | Wet Burst (mm H2O) |
|---|---|---|---|---|---|---|
| BIO-2 | 8μm | Smooth | Medium | <0.1 | 84 | > 140 |
Ordering Information
| Item # | Description |
|---|---|
| BIO-2-055 | Qualitative Filter Papers, Grade 2, Medium, 8μm, 55mm, 100pcs/pk |
| BIO-2-070 | Qualitative Filter Papers, Grade 2, Medium, 8μm, 70mm, 100pcs/pk |
| BIO-2-090 | Qualitative Filter Papers, Grade 2, Medium, 8μm, 90mm, 100pcs/pk |
| BIO-2-110 | Qualitative Filter Papers, Grade 2, Medium, 8μm, 110mm, 100pcs/pk |
| BIO-2-125 | Qualitative Filter Papers, Grade 2, Medium, 8μm, 125mm, 100pcs/pk |
| BIO-2-150 | Qualitative Filter Papers, Grade 2, Medium, 8μm, 150mm, 100pcs/pk |
| BIO-2-180 | Qualitative Filter Papers, Grade 2, Medium, 8μm, 180mm, 100pcs/pk |
| BIO-2-185 | Qualitative Filter Papers, Grade 2, Medium, 8μm, 185mm, 100pcs/pk |
| BIO-2-240 | Qualitative Filter Papers, Grade 2, Medium, 8μm, 240mm, 100pcs/pk |
| BIO-2-270 | Qualitative Filter Papers, Grade 2, Medium, 8μm, 270mm, 100pcs/pk |
