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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.

$27.75 - $475.00

Specifications

Material High-quality Cotton Linters
Format Circle
Grade Grade 40
Pore Size 8 μm
Porosity Medium
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Products 15
Catalog Number Mfr. No. Diameter (Metric) Price Quantity & Availability  
Catalog Number Mfr. No. Diameter (Metric) Price Quantity & Availability  
09-927-541
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Cytiva
1440012
12.7 mm
Pack of 400 for $29.50
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09-845-I
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Cytiva
1440032
32 mm
Pack of 100 for $33.00
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09-845H
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Cytiva
1440042
42.5 mm
Pack of 100 for $34.75
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09-800-969
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Cytiva
1440047
47 mm
Pack for $36.25
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09-845A
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Cytiva
1440055
55 mm
Pack of 100 for $36.00
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09-845B
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Cytiva
1440070
70 mm
Pack of 100 for $37.50
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09-845C
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Cytiva
1440090
90 mm
Pack of 100 for $52.25
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09-845D
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Cytiva
1440110
110 mm
Pack of 100 for $63.00
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09-845E Edge
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Cytiva
1440125
125 mm
Pack of 100 for $72.75
Edge
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09-845F
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Cytiva
1440150
150 mm
Pack of 100 for $94.00
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09-845G
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Cytiva
1440185
185 mm
Pack of 100 for $137.00
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09-845K
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Cytiva
1440240
240 mm
Pack of 100 for $231.00
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09-845M
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Cytiva
1440320
320 mm
Pack of 100 for $475.00
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09-845J
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Cytiva
1440329
30 mm
Pack of 100 for $27.75
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09-927-899
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Cytiva
14406168
450 mm
Pack of 100 for $444.00
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Description

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

Specifications

High-quality Cotton Linters
Grade 40
Medium
ASTM, 75 seconds; Herzberg, 340 seconds
Circle
8 μm
Medium
210 μm
SDS
Product Certifications
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