| Grade |
Grade 41 |
| Type |
Ashless |
| Typical Particle Retention in Liquid1 |
20µm |
| Nominal Thickness |
215 µm |
| Typical water flow rate2 |
254 ml/min |
| Nominal Basis Weight |
85 g/m² |
| Nominal Air Flow Rate |
4 s/100 mL/in² |
| Nominal Ash Content3 |
0.007% |
| Material |
High-quality cotton linters |
| Alpha Cellulose Content Min. |
≥98% |
| Typical Trace Element Levels |
Aluminium 2.5 µg/g Antimony <0.5 µg/g Arsenic <0.5 µg/g Barium <0.5 µg/g Boron <1 µg/g Calcium 8.3 µg/g Chromium 1.5 µg/g Copper 2 µg/g Iron 12 µg/g Lead <0.5 µg/g Magnesium 4 µg/g Manganese <0.5 µg/g Mercury <0.5 µg/g Potassium 2.3 µg/g Silicon 6.2 µg/g Sodium 16.8 µg/g Zinc 64.5 µg/g |
| Application |
Designed for gravimetric analysis and the preparation of samples for instrumental analysis. For analytical procedures involving coarse particles or gelatinous precipitates (e.g., iron or aluminum hydroxides). Also used in quantitative air pollution analysis as a paper tape for impregnation when determining gaseous compounds at high flow rates. |
| Dimensions |
55 mm |
