About the product
- 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 an evolution of ahlstrom 613 for use in the beer industry
- This is a filter paper with an extremely low iron and nitrogen content for the analysis of protein in beer