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Cytiva Whatman™ Quantitative Filter Paper: Grade 40 Circles
Supports accurate analysis in applications sensitive to very low levels of background contamination. Whatman™ Quantitative Filter Paper: Grade 40 Circles are additionally useful in gravimetric analysis where ash content might affect weight measurements of combusted samples.
£19.50 - £406.00
Specifications
| Airflow Rate | 21 s/100 mL/in2 |
|---|---|
| Filter Type | Ashless |
| Format | Disc |
| Material | Cotton Linters |
| Particle Retention | 8 μm |
| Product Code | Brand | Diameter (Metric) | Price | Quantity & Availability | |||||
|---|---|---|---|---|---|---|---|---|---|
| Product Code | Brand | Diameter (Metric) | Price | Quantity & Availability | |||||
|
11370454
|
Cytiva
1440-012 |
12.7 mm |
£20.30
Pack of 400 |
In Stock
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|
10460642
|
Cytiva
1440-032 |
32 mm |
£40.25
Pack of 100 |
In Stock
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|
11352935
|
Cytiva
1440-042 |
42.5 mm |
£21.55
Pack of 100 |
In Stock
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|
11362935
|
Cytiva
1440-047 |
47 mm |
£25.00
Pack of 100 |
In Stock
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|
10674122
|
Cytiva
1440-055 |
55 mm |
£42.40
Pack of 100 |
In Stock
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|
11382935
|
Cytiva
1440-070 |
70 mm |
£24.90
Pack of 100 |
In Stock
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|
11392935
|
Cytiva
1440-090 |
90 mm |
£58.10
Pack of 100 |
In Stock
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|
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|
11302945
|
Cytiva
1440-110 |
110 mm |
£80.30
Pack of 100 |
In Stock
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|
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|
11312945
|
Cytiva
1440-125 |
125 mm |
£92.65
Pack of 100 |
In Stock
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|
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|
11322945
|
Cytiva
1440-150 |
150 mm |
£133.00
Pack of 100 |
In Stock
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|
|||||
|
11332945
|
Cytiva
1440-185 |
185 mm |
£139.00
Pack of 100 |
In Stock
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|
11342945
|
Cytiva
1440-240 |
240 mm |
£159.00
Pack of 100 |
In Stock
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|
11390454
|
Cytiva
1440-320 |
320 mm |
£306.00
Pack of 100 |
In Stock
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|
11380454
|
Cytiva
1440-329 |
30 mm |
£19.50
Pack of 100 |
In Stock
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|||||
|
11300464
|
Cytiva
1440-6168 |
450 mm |
£406.00
Pack of 100 |
In Stock
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Description
Supports accurate analysis in applications sensitive to very low levels of background contamination. Whatman™ Quantitative Filter Paper: Grade 40 Circles are additionally useful in gravimetric analysis where ash content might affect weight measurements of combusted samples.
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.- High-purity filters for quantitative analysis
- Contain 0.007% maximum ash content
- Medium nominal particle retention rating of 8μm
- Medium filtration speed (Herzberg 340 sec.)
Suited for
- Soil analysis, when separating solid matter from aqueous extracts
- Quantitative determination of milk sediment
- Use as a clean-up filter for solutions prior to atomic absorption (AA) spectrometry
- Analysis of constituent components in cements, clays, iron, and steel products
- Collection of trace elements and radionuclides from the atmosphere
Specifications
| 21 s/100 mL/in2 | |
| Disc | |
| 8 μm | |
| ASTM, 75 seconds; Herzberg, 340 seconds | |
| Designed for gravimetric analysis and the preparation of samples for instrumental analysis.Gravimetric analysis for numerous components in cements, clays, iron, and steel products.As a primary filter for separating solid matter from aqueous extracts in | |
| Medium | |
| 210 μm |
| Ashless | |
| Cotton Linters | |
| 8 μm | |
| Medium | |
| Grade 40 | |
| 100 Pk. | |
| Quantitative Filter Paper |
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