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Cytiva Whatman™ Quantitative Filter Paper: Grade 41 Circles
Use for quantitative air pollution analysis as a paper tape for impregnation when determining gaseous compounds at high flow rates or for quantitative air pollution analysis. Whatman™ Quantitative Filter Paper: Grade 41 Circles are commonly used in preparing samples for metal analysis after nitric acid digestion.
Supplier: Cytiva 1441125
Description
Use for quantitative air pollution analysis as a paper tape for impregnation when determining gaseous compounds at high flow rates or for quantitative air pollution analysis. Whatman™ Quantitative Filter Paper: Grade 41 Circles are commonly used in preparing samples for metal analysis after nitric acid digestion.
Ashless grades are very pure filters suitable for a wide range of critical analytical filtration procedures. Whatman™ quantitative filter papers are designed for gravimetric analysis and the preparation of samples for instrumental analysis.- Extremely low ash content (0.007% ash maximum)
- 20μm nominal particle retention rating
- Fast filtration speed (Herzberg 54 s)
- Commonly used for routine air pollution analysis and soil pollution analysis
- High-purity filters for quantitative analysis
Specifications
| 4 s/100 mL/in2 | |
| Disc | |
| 20 μm | |
| ASTM, 12 seconds; Herzberg, 54 seconds | |
| 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 analys | |
| Coarse | |
| 215 μm | |
| 4.92 in. |
| Grade 41 Fast Ashless Filter Paper, 125 mm circle (100 pcs) | |
| Cotton Linters | |
| 20 μm | |
| Fast | |
| Grade 41 | |
| 100 Pack | |
| Ashless | |
| 125 mm |