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™ 1441125

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Catalog No. 09-850D

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    Specifications

    Quantity 100Pack
    Grade 41
    Material High-quality Cotton Linters
    Pore Size (Metric) 20μm
    Format Circle
    Thickness (Metric) 215μm
    Porosity Coarse
    Diameter (Metric) 125mm
    Particle Retention Gelatinous precipitates and coarse particles
    For Use With (Application) Metallurgy: iron and aluminum hydroxides. Air pollution monitoring. Normal loading; limited wet strength
    Flow Rate Fast

    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

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