Whatman™ Quantitative Filter Paper: Grade 540 Circles

Use as a gravimetric filter during analysis of metals in acidic or alkaline solutions and in the collection of hydroxides. Whatman™ Quantitative Filter Paper: Grade 540 Circles acid-treated surface prevents tearing during filtration and allows the user to scrape precipitates from the paper.

Manufacturer: Whatman™ 1540042

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Catalog No. 09-869A

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    Specifications

    Diameter (Metric) 42.5mm
    Porosity Medium
    Particle Retention >8μmm
    For Use With (Application) Gravimetric analysis of metals in acid/alkali solutions. Collecting hydroxides after precipitation by strong alkalis. Normal loading; high wet strength.
    Grade 540
    Quantity 100/Pk.

    Whatman hardened ashless quantitative filter papers are acid-hardened to give high wet strength and chemical resistance with extremely low ash content. They are suitable for a wide range of critical filtration procedures.

    • High-purity, acid-treated cellulose lab filter paper
    • Mechanically strong 
    • Well suited for quantitative or gravimetric analysis of strongly acidic or alkaline samples
    • Extremely low ash content (0.006% ash maximum)
    • Nominal particle retention of 8 µm
    • Medium flow rate (Herzberg filtration speed 200 s)

  • Description & Specifications

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