Laboratory
Wet-strengthened Qualitative Filter Papers
Wet-strengthened filter papers are manufactured from a majority of alpha-cellulose. The smooth surface allows for fibre free filtration. They feature a high wet strength and can also be used in the filtration of strong alkaline or acid solutions. Due to their high mechanical strength, they are suited to applications where the residue is removed from the filter, for example with a spatula or a jet of water.
Grades
Click on a Grade to find out more...
Grade 322
- Fast FiltrationApplication :
Economical filter paper used in schools and as bench protective paper
Grade 323
- Fast FiltrationApplication :
Clarification of sugar cane juice after addition of lead acetate
Grade 324
- Fast, crepedApplication :
For clarification of essential oils
Grade 325
- Very Fast FiltrationApplication :
Filter paper used for all general works in laboratories
Available Grades
| Grade | Whatman Equivalent | Speed | Thickness (mm) | Pore Size (μM) | Weight (g/m²) | Filtration Speed (sec*) | Burst Strength (kg/cm²) |
|---|---|---|---|---|---|---|---|
| Grade: 322 | Whatman Equivalent: = No.93 | Speed: Fast Filtration | Thicness (mm): 0.15 | Pore size: 10-20 | Weight: 64 | Filtration speed (sec*): 50 | Burst strength (kg/cm²): 1.45 |
| Grade: 323 | Whatman Equivalent: = No.91 | Speed: Fast Filtration | Thicness (mm): 0.14 | Pore size: 20-30 | Weight: 64 | Filtration speed (sec*): 30 | Burst strength (kg/cm²): 1.6 |
| Grade: 324 | Whatman Equivalent: = No.113 | Speed: Fast, creped | Thicness (mm): 0.45 | Pore size: 45-65 | Weight: 140 | Filtration speed (sec*): 14 | Burst strength (kg/cm²): 1.8 |
| Grade: 325 | Whatman Equivalent: = No.114 | Speed: Very Fast Filtration | Thicness (mm): 0.17 | Pore size: 17-30 | Weight: 73 | Filtration speed (sec*): 22 | Burst strength (kg/cm²): 1.25 |