Filter paper is a semi-permeable paper barrier placed perpendicular to a liquid or air flow. It is used to separate fine solids from liquids or air.
Properties:
Filter paper comes in various porosities and grades depending on the applications it is meant for. The important parameters are wet strength, porosity, particle retention, flow rate, compatibility, efficiency and capacity.
There are two mechanisms of filtration with paper; volume and surface. By volume filtration the particles are caught in the bulk of the filter paper. By surface filtration the particles are caught on the paper surface.
Quantitative Filter Paper Medium Speed, 8µm
Quantitative Filter Paper Fast Speed, 20um to 25µm
Glass Filter Binder Free Grade GFA
Glass Filter Binder Free Grade GFC
Glass Filter Binder Free Grade GFD
Glass Filter Binder Free Grade GFF
Glass Filter Grade 934AH (Tisch Cross Ref.)