Grade: BIO-41
Filtration Speed: Fast flow
Product Appearance: Smooth
Particle Retention: 20μm
Ash Content(%): <0.007
Basis Weight(g/m²): 84
Thickness(mm): 215
Wet Burst(psi): 0.3
Quantitative Ashless Filter Paper Grade: BIO-41
Description
Description of Quantitative Filter Paper Grade 41
Hawach BIO-41 ashless filter paper is a star product equivalent to Whatman’s Grade 41 with a more competitive price, which has a low retention rate and fast flow rate (20-25μm).
Ashless filter paper in the manufacturing process, the pulp is treated with hydrochloric acid and hydrofluoric acid and washed with distilled water to remove most of the impurities in the paper fiber, so there is little residual ash after burning, which has little effect on the analysis results. It is important to filter paper for laboratory use.
BIO-41 filter paper is the filtration of large particles or gel deposits. Ashless filter paper is also used for rapid flow rate determination of gaseous compounds in quantitative air pollution analysis. The difference between grade 40 medium flow filter paper, quantitative filter paper grade 41 has a fast filtration speed.
Features of Quantitative Filter Paper Grade 41
1. Filter paper for laboratory use
2. Ash-free (ash content < 0.007%) 3. Basic weight is 104 (g/m2) 4. Wet burst >108 (mm H2O)
5. Particularly useful for gravimetric analysis use
6. Fast filtration speed and the nominal particle retention rating of 20-25μm
7. Equivalent to Whatman filter paper 41
Advantages of Ashless Filter Paper BIO-41
1. ISO9001 & CE double approved
2. High purity and consistent performance
3. Full range of diameter, customized size, and shape are available.
4. Made of 100 % cotton linters, 5 different quantitative ashless filter paper grades for nearly every need
Applications
With the fast flow rate
Precise quantitative analysis
Determination of gas compounds
Quantitative determination of milk sediment
Filter coarse particles and gel precipitates
Preparation of samples for instrumental analysis
During the analysis of aluminum hydroxide or iron hydride
Environmental analysis of air pollution, waste, and water
Filtration of large particles or gel deposits
Recommended for analytical processes such as aluminum hydroxide or iron hydride
Specific gravity analysis of air pollution when impregnated with slag for rapid
Rapid flow rate determination of gaseous compounds in quantitative air pollution analysis.
Grade Comparison
| Hawach Scientific Co., Ltd | Whatman | Advantec | Munktell | Ahlstrom | Macherey Nagel |
|---|---|---|---|---|---|
| BIO-41 | Grade 41 | 7 | 00M/389 | n/a | 640m |
Guide for Filter Paper
Technical Data
| Grade | Particle Retention | Product Appearance | Filtration Speed | Ash Content (%) | Basis Weight (g/m2) | Wet Burst (mm H2O) |
|---|---|---|---|---|---|---|
| BIO-41 | 20-25μm | Smooth | Fast | < 0.007 | 104 | > 180 |
Ordering Information
| Item # | Description |
|---|---|
| BIO-41-055 | Quantitative Filter Papers, Grade 41, Fast, 20-25μm, 55mm, 100pcs/pk |
| BIO-41-070 | Quantitative Filter Papers, Grade 41, Fast, 20-25μm, 70mm, 100pcs/pk |
| BIO-41-090 | Quantitative Filter Papers, Grade 41, Fast, 20-25μm, 90mm, 100pcs/pk |
| BIO-41-110 | Quantitative Filter Papers, Grade 41, Fast, 20-25μm, 110mm, 100pcs/pk |
| BIO-41-125 | Quantitative Filter Papers, Grade 41, Fast, 20-25μm, 125mm, 100pcs/pk |
| BIO-41-150 | Quantitative Filter Papers, Grade 41, Fast, 20-25μm, 150mm, 100pcs/pk |
| BIO-41-180 | Quantitative Filter Papers, Grade 41, Fast, 20-25μm, 180mm, 100pcs/pk |
| BIO-41-185 | Quantitative Filter Papers, Grade 41, Fast, 20-25μm, 185mm, 100pcs/pk |
| BIO-41-240 | Quantitative Filter Papers, Grade 41, Fast, 20-25μm, 240mm, 100pcs/pk |
| BIO-41-270 | Quantitative Filter Papers, Grade 41, Fast, 20-25μm, 270mm, 100pcs/pk |
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