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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.

$38.40 - $569.67

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™
1441-070
70mm Pack of 100 Each for $54.73

09-850B

  Accessories
whatman™
1441-090
90mm Pack of 100 Each for $71.58

09-850C

  Accessories
whatman™
1441-110
110mm Pack of 100 Each for $85.96

09-850D

  Accessories
whatman™
1441-125
125mm Pack of 100 Each for $100.29

09-850E

  Accessories
whatman™
1441-150
150mm Pack of 100 Each for $135.90

09-850G

  Accessories
whatman™
1441-042
42.5mm Pack of 100 Each for $38.40

09-850H

  Accessories
whatman™
1441-047
47mm Pack of 100 Each for $39.94

09-850J

  Accessories
whatman™
1441-055
55mm Pack of 100 Each for $45.08

09-850L

  Accessories
whatman™
1441-185
185mm Pack of 100 Each for $200.90

09-850M

  Accessories
whatman™
1441-240
240mm Pack of 100 Each for $318.08

09-850P

  Accessories
whatman™
1441-320
32mm Pack of 100 Each for $569.67
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