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GE Healthcare Whatman™ Quantitative Filter Paper: Grade 540 Circles Available on GSA/VA Contract for Federal Government customers only.

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:  GE Healthcare 1540185

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Catalog No. 09-869K


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Description

Description

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)

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Specifications

Specifications

Grade 540 Ashless General Lab Filter Paper, 185 mm circles (100 pcs)
GE’s Whatman Grade 540 is a high-purity, acid-treated cellulose lab filter paper. Mechanically strong Grade 540 is well suited for quantitative or gravimetric analysis of strongly acidic or alkaline samples.
Grade 540
Circles
185 mm
Frequently used in the gravimetric analysis of metals in acid/alkali solutions and in collecting hydroxides after precipitation by strong alkalis.
160 μm
Hardened Ashless
100/Pk.
High-quality cotton linters
Medium
8 μm
13 s/100 mL/in2
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