Sartorius Qualitative Papers/ Grade 1289 - 0X0X0
- Order No.: 1927966
- Manufacturer Art. No.: FT-1-207-0040200
These qualitative filter papers are essentially used for analytical and routine analyses, when no gravimetric analyses are required. They are wet strengthened and can be used for pressure and vacuum filtration. They are available in different formats as in rolls, sheets, discs and folded filters. Qualitative Papers Filtration rate: the time required to filter 10 ml of distilled water at 20 °C through a free-hanging, fully-wetted disc filter with a diameter of 110 mm folded in quarters. Expressed in seconds (per mm).
| Grade | Precipitation | Properties | Basis Weight | Particle retention (g/m²) | Filtration rate (µm) |
|---|---|---|---|---|---|
| 1288 | Coarse crystalline | Wide-pored, soft, spongy structure, wet strength, fast rate of filtration | 84 | 12-15 | 10 |
| 1288 N | Coarse crystalline | Wide-pored, soft, spongy structure, wet strength, fast rate of filtration extra wet strengthened | 84 | 12-15 | 10 |
| 1289 | Medium-fine crystalline | Medium-wide-pored, wet strength, medium rate of filtration | 84 | 8-12 | 20 |
| 1292 | Fine crystalline | Medium density, wet strength, moderately, fast rate of filtration | 84 | 5-8 | 50 |
| 1290 | Fine crystalline | Narrow-pored, dense, wet strength, slow rate of filtration | 84 | 3-5 | 100 |
| 1291 | Very fine crystalline | Fine-pored, highly dense, wet strength, very slow rate of filtration | 84 | 2-3 | 180 |
| 293 | Very fine crystalline | Fine-pored, highly dense, very slow rate of filtration | 80 | 1-2 | 300 |
Sartorius customers are working hard to develop and manufacture medicines that cure, prevent or stop the progression of diseases. To be successful, they rely on partners who understand their current and future challenges. For 150 years, the Sartorius brand has stood for innovative products and solutions that support the work of scientists and engineers worldwide. Satorius has increasingly focused on enabling breakthroughs in life science research and bioproduction.