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Whatman™ Quantitative Filter Paper: Grade 41 Circles

Use for quantitative air pollution analysis as a paper tape for impregnation when determining gaseous compounds at high flow rates or for quantitative air pollution analysis. Whatman™ Quantitative Filter Paper: Grade 41 Circles are commonly used in preparing samples for metal analysis after nitric acid digestion.

$39.04 - $579.40

Specifications

Material High-quality Cotton Linters
Grade 41
Pore Size (Metric) 20μm
Porosity Coarse
Format Circle
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Products
Catalog Number Mfr. No. Diameter (Metric) Price Quantity    

09-850A

  Accessories
whatman™
1441070
70mm Pack of 100 Each for $55.67

09-850B

  Accessories
whatman™
1441090
90mm Pack of 100 Each for $72.81

09-850C

  Accessories
whatman™
1441110
110mm Pack of 100 Each for $87.44

09-850D

  Accessories
whatman™
1441125
125mm Pack of 100 Each for $102.02

09-850E

  Accessories
whatman™
1441150
150mm Pack of 100 Each for $138.21

09-850H

  Accessories
whatman™
1441047
47mm Pack of 100 Each for $40.63

09-850G

  Accessories
whatman™
1441042
42.5mm Pack of 100 Each for $39.04

09-850L

  Accessories
whatman™
1441185
185mm Pack of 100 Each for $204.33

09-850M

  Accessories
whatman™
1441240
240mm Pack of 100 Each for $323.63

09-850P

  Accessories
whatman™
WHT1441320
32mm Pack of 100 Each for $579.40
Description & Specifications

Specifications

Material High-quality Cotton Linters
Grade 41
Pore Size (Metric) 20μm
Porosity Coarse
Format Circle
Flow Rate Fast
Thickness (Metric) 215μm

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.

  • Extremely low ash content (0.007% ash maximum)
  • 20µm nominal particle retention rating
  • Fast filtration speed (Herzberg 54 s)
  • Commonly used for routine air pollution analysis and soil pollution analysis
  • High-purity filters for quantitative analysis