Grade: BIO-4
Equivalent to Whatman Grade 4
Filtration Speed: Fast
Ash Content(%): <0.06
Particle Retention: 20μm
Product Appearance: Smooth
Basis Weight(g/m²): 96
Wet Burst(psi): 0.7
Thickness(mm): 205
Availability: In Stock
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 substituting 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. The difference from filter paper 1 micron, is the filtration speed of 20 micron filter paper is fast.
Hawach Scientific Co., Ltd is a China qualitative and quantitative micron filter manufacturer and supplier, that produces full range size filter paper to meet your chemical and biology experiment.
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 | Pore Size | Diameter | Package |
BIO-4-055 | Grade 4, fast flow rate | 20-25 μm | 55mm | 100pcs/pk |
BIO-4-070 | 70mm | |||
BIO-4-090 | 90mm | |||
BIO-4-110 | 110mm | |||
BIO-4-125 | 125mm | |||
BIO-4-150 | 150mm | |||
BIO-4-180 | 180mm | |||
BIO-4-185 | 185mm | |||
BIO-4-240 | 240mm | |||
BIO-4-270 | 270mm |