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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.
$42.00 - $717.00
Specifications
| Airflow Rate | 21 s/100 mL/in2 |
|---|---|
| Format | Disc |
| Material | Cotton Linters |
| Particle Retention | 8 μm |
| Pore Size | 8 μm |
| Catalog Number | Mfr. No. | Diameter (Metric) | Price | Quantity & Availability | |||||
|---|---|---|---|---|---|---|---|---|---|
| Catalog Number | Mfr. No. | Diameter (Metric) | Price | Quantity & Availability | |||||
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09-927-541
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Cytiva
1440012 |
12.7 mm |
Pack of 400 for $44.60
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09-845-I
|
Cytiva
1440032 |
32 mm |
Pack of 100 for $49.80
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09-845H
|
Cytiva
1440042 |
42.5 mm |
Pack of 100 for $52.70
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09-800-969
|
Cytiva
1440047 |
47 mm |
Pack for $54.80
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09-845A
|
Cytiva
1440055 |
55 mm |
Pack of 100 for $54.20
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09-845B
|
Cytiva
1440070 |
70 mm |
Pack of 100 for $56.60
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09-845C
|
Cytiva
1440090 |
90 mm |
Pack of 100 for $78.90
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09-845D
|
Cytiva
1440110 |
110 mm |
Pack of 100 for $96.50
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09-845E
|
Cytiva
1440125 |
125 mm |
Pack of 100 for $110.00
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09-845F
|
Cytiva
1440150 |
150 mm |
Pack of 100 for $142.10
|
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09-845G
|
Cytiva
1440185 |
185 mm |
Pack of 100 for $207.50
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09-845K
|
Cytiva
1440240 |
240 mm |
Pack of 100 for $349.50
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09-845M
|
Cytiva
1440320 |
320 mm |
Pack of 100 for $717.00
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09-845J
|
Cytiva
1440329 |
30 mm |
Pack of 100 for $42.00
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09-927-899
|
Cytiva
14406168 |
450 mm |
Pack of 100 for $668.00
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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 | |
| Cotton Linters | |
| 8 μm | |
| Medium | |
| Grade 40 | |
| 100 Pack | |
| Ashless |
| 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 |
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