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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.
$37.51 - $770.35
Specifications
| Airflow Rate | 21 s/100 mL/in2 |
|---|---|
| Filter Type | Ashless |
| Format | Disc |
| Material | Cotton Linters |
| Particle Retention | 8 ÎĽm |
| Catalog Number | Mfr. No. | Diameter (Metric) | Price | Quantity | |||||
|---|---|---|---|---|---|---|---|---|---|
| Catalog Number | Mfr. No. | Diameter (Metric) | Price | Quantity | |||||
|
09-927-541
|
Cytiva
1440012 |
12.7 mm |
Pack of 400 Each for $39.76
|
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|
09-845H
|
Cytiva
1440042 |
42.5 mm |
Pack of 100 Each for $53.33
|
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|
09-800-969
|
Cytiva
1440047 |
47 mm |
Pack of 100 Each for $50.87
|
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|
09-845A
|
Cytiva
1440055 |
55 mm |
Pack of 100 Each for $58.84
|
|
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|
09-845B
|
Cytiva
1440070 |
70 mm |
Pack of 100 Each for $61.27
|
|
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|
09-845C
|
Cytiva
1440090 |
90 mm |
Pack of 100 Each for $99.88
|
|
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|
09-845D
|
Cytiva
1440110 |
110 mm |
Pack of 100 Each for $118.47
|
|
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|
09-845E
|
Cytiva
1440125 |
125 mm |
Pack of 100 Each for $144.35
|
|
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|
09-845F
|
Cytiva
1440150 |
150 mm |
Pack of 100 Each for $212.12
|
|
|||||
|
09-845G
|
Cytiva
1440185 |
185 mm |
Pack of 100 Each for $263.09
|
|
|||||
|
09-845K
|
Cytiva
1440240 |
240 mm |
Pack of 100 Each for $312.48
|
|
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|
09-845M
|
Cytiva
1440320 |
320 mm |
Pack of 100 Each for $645.56
|
|
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|
09-845J
|
Cytiva
1440329 |
30 mm |
Pack of 100 Each for $37.51
|
|
|||||
|
09-927-899
|
Cytiva
14406168 |
450 mm |
Pack of 100 Each for $770.35
|
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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 8ÎĽm
- 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 ÎĽm | |
| 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 ÎĽm |
| Ashless | |
| Cotton Linters | |
| 8 ÎĽm | |
| Medium | |
| Grade 40 | |
| 100 Pk. | |
| Quantitative Filter Paper |