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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.
9.75 € - 207.00 €
Specifications
| Format | Disc |
|---|---|
| Material | Cellulose |
| Particle Retention | 25 μm |
| Pore Size | 20 to 25 μm |
| Filtration Speed | 37 sec. |
| Product Code | Brand | Diameter (Metric) | Price | Quantity & Availability | |||||
|---|---|---|---|---|---|---|---|---|---|
| Product Code | Brand | Diameter (Metric) | Price | Quantity & Availability | |||||
|
11370444
|
Cytiva
1004-027 |
27 mm |
60.25 €
Pack of 400 |
Estimated Shipment: 09-01-2025
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|
12375813
|
Cytiva
1004-041 |
41 mm |
10.15 €
Pack of 100 |
In Stock
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|
11342845
|
Cytiva
1004-042 |
42.5 mm |
12.10 €
Pack of 100 |
In Stock
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|
11390444
|
Cytiva
1004-047 |
47 mm |
10.80 €
Pack of 100 |
In Stock
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|
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|
11300454
|
Cytiva
1004-050 |
50 mm |
9.75 €
Pack of 100 |
In Stock
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|
11352845
|
Cytiva
1004-055 |
55 mm |
12.26 €
Pack of 100 |
In Stock
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|
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|
10598671
|
Cytiva
1004-070 |
70 mm |
15.05 €
Pack of 100 |
In Stock
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|
11372845
|
Cytiva
1004-090 |
90 mm |
20.15 €
Pack of 100 |
In Stock
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|
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|
11382845
|
Cytiva
1004-110 |
110 mm |
24.95 €
Pack of 100 |
In Stock
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|
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|
11392845
|
Cytiva
1004-125 |
125 mm |
24.30 €
Pack of 100 |
In Stock
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|
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|
10614941
|
Cytiva
1004-150 |
150 mm |
43.75 €
Pack of 100 |
In Stock
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|
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|
10419691
|
Cytiva
1004-185 |
185 mm |
50.00 €
Pack of 100 |
In Stock
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|
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|
11322855
|
Cytiva
1004-240 |
240 mm |
90.15 €
Pack of 100 |
In Stock
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|
11360444
|
Cytiva
1004-270 |
270 mm |
84.80 €
Pack of 100 |
In Stock
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|
11332855
|
Cytiva
1004-320 |
320 mm |
134.00 €
Pack of 100 |
In Stock
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|||||
|
11380444
|
Cytiva
1004-400 |
400 mm |
207.00 €
Pack of 100 |
In Stock
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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 |
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