Wet-strengthened Qualitative Filter Papers
Wet-strengthened filter papers are manufactured from a majority of alpha-cellulose. The smooth surface allow a 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 jet of water.
GradesClick on a Grade to find out more...
Grade 322- Fast Filtration
Economical filter paper used in schools and as bench protective paper.
Grade 323- Fast Filtration
Clarification of sugar cane juice after addition of lead acetate
Grade 324- Fast, creped
for clarification of essential oils
Grade 325- Very Fast Filtration
Filter paper used for all general works in laboratories.
|Grade||Whatman Equivalent||Speed||Thickness (mm)||Pore Size (μM)||Weight (g/m²)||Filtration Speed (sec*)||Burst Strength (kg/cm²)|
|322||= No.93||Fast Filtration||0.15||10-20||64||50||1.45|
|323||= No.91||Fast Filtration||0.09||8-10||75|
|324||= No.113||Fast, creped||0.43||20||130|
|325||= No.114||Very Fast Filtration||0.17||17-30||73||22||1.25|