Product Information
- 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 grade is used for the filtration of coarse particles and gelatinous precipitates such as ferric aluminum and magnesium hydroxides
- Ahlstrom 631 is used in air monitoring and gas filtration when high flow rate is needed
