FILTECH Qualitative Grades of filter paper are recommended for use in analytical methods which determine or identify particulate constituents of a mixture irrespective of the amount present.
The standard grades are suitable for quadrant folded or gravity flow applications. These filter papers contain a high level of alpha cellulose which provides high purity but will weaken when wet.
For applications using filter paper in a system under pressure or vacuum, please refer to our High Wet Strength Grades.