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| Size/SKU | Availability | Price |
|---|---|---|
100 ea | Available to ship TODAY | £41.20 |
About This Item
£41.20
Available to ship TODAYDetails
material
circles , cotton filters (high-quality cotton linters)
packaging
pack of 100
manufacturer/tradename
Whatman 1441-125, Whatman Article No. 28418019 (US reference)
parameter
0.22 psi wet burst, 54 sec/100 mL speed (Herzberg)
diam.
125 mm
thickness
220 μm
ash
≤0.007%
pore size
20-25 μm (Particle retention)
basis weight
85 g/m2
General description
Fast ashless paper for pollution analysis
Whatman Grade 41 filters from Cytiva′s business are suitable for quantitative air pollution analysis as a paper tape for impregnation when determining gaseous compounds at high flow rates.
Grade 41 filters are also commonly used in preparing solid environmental samples (e.g., soils, sludges) for metals analysis after nitric acid digestion. Grade 41 is available in a convenient, disposable, 47 mm filter funnel with a 250 ml capacity. The 47 mm diameter filter can be easily removed for further analysis or culturing.
Features and Benefits
- Extremely low ash content (0.007% ash maximum)
- 20 µm nominal particle retention rating
- Fast filtration speed (Herzberg 54 s)
- Commonly used for routine air pollution analysis and soil pollution analysis
Other Notes
Legal Information
1 of 1
This Item | |||
|---|---|---|---|
| description circles, diam. 125 mm, pack of 100 | description circles, diam. 185 mm, pack of 100 | description circles, diam. 150 mm, pack of 100 | description circles, diam. 240 mm, pack of 100 |
| diam. 125 mm | diam. 185 mm | diam. 150 mm | diam. 240 mm |
| manufacturer/tradename Whatman 1441-125, Whatman Article No. 28418019 (US reference) | manufacturer/tradename Whatman Article No. 28418021 (US reference), Whatman 1441-185 | manufacturer/tradename Whatman 1441-150, Whatman Article No. 28418020 (US reference) | manufacturer/tradename Whatman 1441-240, Whatman Article No. 28418022 (US reference) |
| pore size 20-25 μm (Particle retention) | pore size 20-25 μm (Particle retention) | pore size 20-25 μm (Particle retention) | pore size 20-25 μm (Particle retention) |
| material circles , cotton filters (high-quality cotton linters) | material circles , cotton filters (high-quality cotton linters) | material circles , cotton filters (high-quality cotton linters) | material circles , cotton filters (high-quality cotton linters) |
| parameter 54 sec/100 mL speed (Herzberg), 0.22 psi wet burst | parameter 54 sec/100 mL speed (Herzberg), 0.22 psi wet burst | parameter 54 sec/100 mL speed (Herzberg), 0.22 psi wet burst | parameter 54 sec/100 mL speed (Herzberg), 0.22 psi wet burst |
| packaging pack of 100 | packaging pack of 100 | packaging pack of 100 | packaging pack of 100 |
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