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Whatman™ Quantitative Filter Paper: Grade 41 Circles Available on GSA/VA Contract for Federal Government customers only.

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.

Manufacturer:  Whatman™ 1441240

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Catalog No. 09-850M


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Specifications

Description

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
Description & Specifications

Specifications

100Pack
High-quality Cotton Linters
Circle
Coarse
Gelatinous precipitates and coarse particles
Fast
41
20μm
215μm
240mm
Metallurgy: iron and aluminum hydroxides. Air pollution monitoring. Normal loading; limited wet strength
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