Ahlstrom Filtration Grade 94 Ashless Quantitative Filter Paper, 12.5 cm dia
Quantitative Filter Paper, 12.5 cm dia, Cotton, Grade 94, Ashless Grade Type, Circle Format, 0.19 mm Thickness, 1.5 µm Particle Retention in Liquid, 94.8 g/m2 Nominal Basis Weight, 1724 sec/100 ml (Herzberg) Filtration Speed
- Manufacturer Part No: 0940-1250
- SECO Part No: 12-4597-05
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Ahlstrom manufactures a series of extremely high purity, acid washed filter papers designed for use in analytical and gravimetric analysis. The quantitative grades are manufactured from top quality cotton linters using ultra-pure, reverse-osmosis water and are further treated with dilute acid to remove any remaining organic and inorganic impurities. All quantitative grades are manufactured in a strictly controlled environment that ensures high uniformity and high purity from filter to filter. This is an extremely fine retention filter for critical gravimetric analysis of very fine particles such as barium and lead sulfates, stannic and nickel sulfide, calcium oxalate and calcium fluoride.
| Diameter | : | 12.5 cm |
| Grade | : | 94 |
| Material | : | Cotton |
| Ash Content | : | 0.007% |
| Grade Type | : | Ashless |
| Type | : | Quantitative |
| Filtration Speed | : | 1724 sec/100 ml (Herzberg) |
| Format | : | Circle |
| Nominal Basis Weight | : | 94.8 g/m2 |
| Particle Retention in Liquid | : | 1.5 µm |
| Properties | : | Slow Flow |
| Thickness | : | 0.19 mm |
| Typical Water Flow Rate | : | 4 ml/min |
| Wet Burst Pressure | : | 63.5 cm |
| Loading Capacity | : | Medium |
| Rapidity Filtration Speed | : | 4 ml/min |
| Klemm (Capillary Rise) | : | 13 mm/min |
- Quantitative analysis
- Acid-wash treated
- High wet-strength
- Consistent performance
- Bulk packaging
Specification Sheet
