Grade: BIO-4
Particle Retention: 20μm
Product Appearance: Smooth
Filtration Speed: Fast
Ash Content(%): <0.06
Thickness(mm): 205
Basis Weight(g/m²): 96
Wet Burst(psi): 0.7
Qualitative 20 Micron Filter Paper Grade: BIO-4
Description
Description of 20 micron filter paper BIO-4
Hawach BIO-4 qualitative lab filter paper is standard grade filter paper for routine applications. BIO-4 filter paper material is alpha-cellulose and cotton linter. BIO-4 20 micron filter paper is ideal for substitute the Whatman grade 4 and with a more competitive price, which has a low retention rate and fast flow rate(20μm). General filtration for laboratory use, pore size is about 20 microns, fast flow rate, ash content less than 0.1%, gram weight 84g, wet bursting degree greater than 120mm water column.
Hawach Scientific Co., Ltd is a China qualitative and quantitative micron filter manufacturer and supplier, who produces full range size filter paper to meet your chemical and biology experiment.
Features of 20 micron filter paper BIO-4
1. BIO-4 is equivalent to Whatman Grade 4
2. The diameter of BIO-4 is the same as qualitative filtration filter paper grade 2, which are 55, 70, 90, 110, 125, 150, 180, 185, 240, 270, 300mm
3. The filter papers have a broad pH tolerance and are thermostable up to 120°C
4. 20 micron qualitative filter paper
5. micron filter manufacturer
Advantages of lab filter paper
1. ISO9001 & CE Double approved
2. According to figure: round and square, accept OEM service
3. Manufactured from alpha-cellulose and high-quality cotton linters
4. High purity and consistent performance
5. Lowest ashless content: < 0.1%
Applications of lab filter paper
1. Monitoring air pollution with reagent immersion
2. Natural filtration is generally used, and the separation of the test liquid and the solid is performed by using the filter paper body and the 1. ability to trap solid particles
3. It is best not to filter hot concentrated sulfuric acid or nitric acid solution
4. Determination of oil and grease in the volatile acid in flour, malt sugar
5. Citric acid and sodium in drugs
Grade Comparison
| Hawach Scientific Co., Ltd | Whatman | Advantec | Munktell | Ahlstrom | Macherey Nagel | Sartorius |
|---|---|---|---|---|---|---|
| BIO-4 | Grade 4 | 1 | 1288/3 | 631 | 1670 | 604 |
Guide for Filter Paper
Technical Data
| Grade | Particle Retention |
Product Appearance |
Filtration Speed |
Ash Content (%) |
Basis Weight (g/m2) |
Wet Burst (mm H2O) |
|---|---|---|---|---|---|---|
| BIO-4 | 20μm | Smooth | Fast | <0.1 | 84 | > 120 |
Ordering Information
| Item # | Description |
|---|---|
| BIO-4-055 | Qualitative Filter Papers, Grade 4, Fast, 20-25μm, 55mm, 100pcs/pk |
| BIO-4-070 | Qualitative Filter Papers, Grade 4, Fast, 20-25μm, 70mm, 100pcs/pk |
| BIO-4-090 | Qualitative Filter Papers, Grade 4, Fast, 20-25μm, 90mm, 100pcs/pk |
| BIO-4-110 | Qualitative Filter Papers, Grade 4, Fast, 20-25μm, 110mm, 100pcs/pk |
| BIO-4-125 | Qualitative Filter Papers, Grade 4, Fast, 20-25μm, 125mm, 100pcs/pk |
| BIO-4-150 | Qualitative Filter Papers, Grade 4, Fast, 20-25μm, 150mm, 100pcs/pk |
| BIO-4-180 | Qualitative Filter Papers, Grade 4, Fast, 20-25μm, 180mm, 100pcs/pk |
| BIO-4-185 | Qualitative Filter Papers, Grade 4, Fast, 20-25μm, 185mm, 100pcs/pk |
| BIO-4-240 | Qualitative Filter Papers, Grade 4, Fast, 20-25μm, 240mm, 100pcs/pk |
| BIO-4-270 | Qualitative Filter Papers, Grade 4, Fast, 20-25μm, 270mm, 100pcs/pk |
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