Equivalent to GE Whatman
Made in EUROPE
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Ahlstrom-Munksjö 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.
Key Features
| Grades | Retention in µm | Filtration Speed Herzberg sec/100mls |
Filtration Speed Rapidity mls/min |
Loading Capacity | GE Whatman Cross Reference |
| 391 | 2-3 | 1200 | 7 | Medium | 50 |
| 392 | 5-8 | 300 | 33 | Medium | 52 |
| 388 | 12-15 | 40 | 267 | Medium | 54 |
| 94 | 1.5 | 1724 | 4 | Medium | 42 |
| 74 | 2.0 | 229 | 30 | Medium | 40 |
| 54 | 10.0 | 34 | 200 | Medium | 41 |
| 95 | 1.5 | 458 | 15 | Medium | 542 |
| 75 | 2.0 | 149 | 45 | Medium | 540 |
| 55 | 15.0 | 31 | 220 | Medium | 541 |
