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Cytiva Whatman™ Qualitative Filter Paper: Grade 4 Circles
Filters and retains coarse particles for monitoring air pollution. Whatman™ Qualitative Filter Paper: Grade 4 Circles are used when high flow rates in air pollution monitoring are required and the collection of fine particles is not critical.
$15.39 - $355.00
Specifications
| Format | Disc |
|---|---|
| Material | Cellulose |
| Particle Retention | 25 μm |
| Pore Size | 20 to 25 μm |
| Filtration Speed | 37 sec. |
| Catalog Number | Mfr. No. | Diameter (Metric) | Price | Quantity | |||||
|---|---|---|---|---|---|---|---|---|---|
| Catalog Number | Mfr. No. | Diameter (Metric) | Price | Quantity | |||||
|
09927836
|
Cytiva
1004027 |
27 mm |
Pack of 400 Each for $87.87
|
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|
09927158
|
Cytiva
1004041 |
41 mm |
Pack of 100 Each for $15.39
|
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|
09-825J
|
Cytiva
1004042 |
42.5 mm |
Pack of 100 Each for $19.67
|
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|
09927837
|
Cytiva
1004047 |
47 mm |
Pack of 100 Each for $17.59
|
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|
09927828
|
Cytiva
1004050 |
50 mm |
Pack of 100 Each for $19.76
|
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|
09-825K
|
Cytiva
1004055 |
55 mm |
Pack of 100 Each for $30.72
|
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|
09-825A
|
Cytiva
1004070 |
70 mm |
Pack of 100 Each for $22.41
|
|
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|
09-825B
|
Cytiva
1004090 |
90 mm |
Pack of 100 Each for $32.77
|
|
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|
09-825C
|
Cytiva
1004110 |
110 mm |
Pack of 100 Each for $45.66
|
|
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09-825D
|
Cytiva
1004125 |
125 mm |
Pack of 100 Each for $61.44
|
|
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|
09-825E
|
Cytiva
1004150 |
150 mm |
Pack of 100 Each for $69.27
|
|
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|
09-825F
|
Cytiva
1004185 |
185 mm |
Pack of 100 Each for $99.20
|
|
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|
09-825G
|
Cytiva
1004240 |
240 mm |
Pack of 100 Each for $197.80
|
|
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|
09-825L
|
Cytiva
1004270 |
270 mm |
Pack of 100 Each for $217.67
|
|
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|
09-825H
|
Cytiva
1004320 |
320 mm |
Pack of 100 Each for $241.00
|
|
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|
09-825M
|
Cytiva
1004400 |
400 mm |
Pack of 100 Each for $355.00
|
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Description
Filters and retains coarse particles for monitoring air pollution. Whatman™ Qualitative Filter Paper: Grade 4 Circles are used when high flow rates in air pollution monitoring are required and the collection of fine particles is not critical.
These cellulose filters are used in qualitative analytical techniques to determine and identify materials and for clarifying liquids.
- Particle Retention: 25μm
- Porosity: Coarse
- Filtration speed: Herzberg, 37 sec.
- Surface: smooth
- Extremely fast filtering with excellent retention of coarse particles and gelatinous precipitates such as ferric hydroxide and aluminum hydroxide
- Useful as a rapid filter for routine clean-up of biological fluids or organic extracts during analysis
Specifications
| Disc | |
| 25 μm | |
| 37 sec. | |
| Grade 4 | |
| 210 μm |
| Cellulose | |
| 20 to 25 μm | |
| Fast | |
| Medium |