Hardened Low Ash Filter Paper for Quantitative Analysis
These filters, made from cotton linters fiber, are put through a washing process and treated with strong acids. A very low ash-content filter with a <0.015% (intermediate between CHM® qualitative grades and ashless quantitative grades).
Grades
- F2054 GRADE: Fast filtration. The fastest filter paper in the range.
- F2052 GRADE: Medium-fast filtration. General-purpose hardened filter paper with medium-rate filtering.
- F2050 GRADE: Slow filtration. Excellent retention of very fine particles.
Specification
| Grade | Filtration Speed | Weight (g/m²) | Thickness (µm) | Retention Range (µm) | Ash Content (%) |
|---|---|---|---|---|---|
| F2054 | Fast | 90 | 200 | 20-25 | <0.015 |
| F2052 | Medium-Fast | 90 | 190 | 7-8 | <0.015 |
| F2050 | Slow | 90 | 180 | 2-3 | <0.015 |