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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™  1540-042

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Catalog No. 09-869A

  • / Pack of 100 Each
 

Description & Specifications

Specifications

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

Accessories

Accessories for Catalog Number: 09869A

Item Mfr. No. Item Description Price Per Unit Quantity  
09-753-50
Fisherbrand™ Filter Forceps
fisherbrand™
SDI25510
Easy, effortless handling of membranes and glass fiber filters Each for $11.07