Qualitative filter papers are often used in routine separation work that still requires high purity and consistent performance
Qualitative grades consist of greater than 95 percent super refined a cellulose and linter fibers
Standard qualitative filter papers are suitable for quadrant folded or gravity flow applications
This is an extremely fast filtering grade and has a larger particle retention
Ahlstrom 617, a thicker filter paper with higher loading capacity, is used for rapid filtration of coarse particles and gelatinous precipitates such as in oils and resin solutions