Quantitative Filter Paper, 55 mm dia, Cotton Linters, Grade 50
Quantitative Filter Paper, 55 mm dia, Cotton Linters, Grade 50, Hardened Low Ash Grade Type, Circle Format, 115 µm Thickness, 2.7 µm Particle Retention in Liquid, 96 g/m2 Nominal Basis Weight, 2685 secs/100 ml (Herzberg) Filtration Speed
- Manufacturer Part No: 1450-055
- SECO Part No: 12-4930-02
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Cytiva's thinnest Whatman™ brand hardened filter paper, highly glazed Grade 50 supports vacuum filtration in Buchner funnels or Hirsch funnels and enables strong retention of very fine crystalline precipitates.
| Diameter | : | 55 mm |
| Grade | : | Grade 50 |
| Material | : | High-quality Cotton Linters |
| Ash Content | : | 0.015% |
| Sterility | : | Non-sterile |
| Grade Type | : | Hardened Low Ash |
| Type | : | Quantitative |
| Dry Burst Pressure | : | 117 kPa/17 psi |
| Filtration Speed | : | 2685 sec/100 ml (Herzberg) |
| Format | : | Circle |
| Nominal Air Flow Rate | : | 144 sec/100 ml/in2 |
| Nominal Basis Weight | : | 96 g/m2 |
| Particle Retention in Liquid | : | 2.7 µm |
| Properties | : | Slow |
| Thickness | : | 115 µm |
| Typical Water Flow Rate | : | 10 ml/min |
| Wet Burst Pressure | : | 41.4 kPa/6 psi |
| Alpha Cellulose Content | : | =98% |
| Loading Capacity | : | N |
Thinner filter design (average thickness 115 µm) than most Buchner filter papersAcid-treated for high wet-strength and chemical resistanceNominal particle retention of 2.7 µmSlow flow rates (Herzberg filtration speed 2685 s)High purity and low ash content (0.015% ash maximum)Compatible with Hirsch or Buchner funnelsFor qualitative or quantitative filtrations requiring vacuum assistance on Buchner or 3-piece filter funnels