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GE’s Whatman Grade 41 environmental pollution papers are among the fastest filter papers in the Whatman ashless range. This gravimetric filter is well suited for quantitative analysis of soil and air.
GE’s Whatman Grade 41 environmental pollution papers are among the fastest filter papers in the Whatman ashless range. This gravimetric filter is well suited for quantitative analysis of soil and air.
Catalog
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Grade 41
Grade 41: 20 µm
The fastest ashless filter paper, recommended for analytical procedures involving coarse particles or gelatinous precipitates (e.g., iron or aluminum hydroxides)This filter is also available in the Disposable Filter Funnel. This is a convenient, disposable 47 mm filter funnel with a 250 ml capacity (catalog number 1920-1441). The 47 mm Grade 41 filter can be easily removed for further analysis or culturing.
Ordering Information – Qualitative Filter Sheets – Standard Grades
| Dimensions(mm) | Catalog Number | Quantity/Pack |
| Grade 41 Ashless Filter Paper, Filter Circles, 25 mm | 1441-325 | 100 |
| Grade 41 Ashless Filter Paper, Filter Circles, 25 mm | 1441-025 | 400 |
| Grade 41 Ashless Filter Paper, Filter Circles, 25 mm | 1441-6309 | 1000 |
| Grade 41 Ashless Filter Paper, Filter Circles, 40,5 mm | 1441-040 | 100 |
| Grade 41 Ashless Filter Paper, Filter Circles, 42,5 mm | 1441-042 | 100 |
| Grade 41 Ashless Filter Paper, Filter Circles, 47 mm | 1441-047 | 100 |
| Grade 41 Ashless Filter Paper, Filter Circles, 50 mm | 1441-050 | 100 |
| Grade 41 Ashless Filter Paper, Filter Circles, 55 mm | 1441-055 | 100 |
| Grade 41 Ashless Filter Paper, Filter Circles, 60 mm | 1441-060 | 100 |
| Grade 41 Ashless Filter Paper, Filter Circles, 70 mm | 1441-070 | 100 |
| Grade 41 Ashless Filter Paper, Filter Circles, 90 mm | 1441-090 | 100 |
| Grade 41 Ashless Filter Paper, Filter Circles, 105 mm | 1441-105 | 100 |
| Grade 41 Ashless Filter Paper, Filter Circles, 110 mm | 1441-110 | 100 |
| Grade 41 Ashless Filter Paper, Filter Circles, 125 mm | 1441-125 | 100 |
| Grade 41 Ashless Filter Paper, Filter Circles, 150 mm | 1441-150 | 100 |
| Grade 41 Ashless Filter Paper, Filter Circles, 185 mm | 1441-185 | 100 |
| Grade 41 Ashless Filter Paper, Filter Circles, 240 mm | 1441-240 | 100 |
| Grade 41 Ashless Filter Paper, Filter Circles, 320 mm | 1441-320 | 100 |
| Grade 41 Ashless Filter Paper, Disposable Filter Funnel, 47 mm | 1920-1441 | 5 |
| Grade 41 Ashless Filter Paper, Filter Sheets 203x254 mm | 1441-866 | 100 |
| Grade 41 Ashless Filter Paper, Filter Sheets 460x570 mm | 1441-917 | 100 |