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Merck
CN

Z241768

Whatman® quantitative filter paper, hardened low-ash, Grade 50

circles, diam. 110 mm, pack of 100

Synonym(s):

Whatman filter, filter paper, paper filter

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About This Item

UNSPSC Code:
41104900
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material

circles
cotton filters (high-quality cotton linters)

packaging

pack of 100

manufacturer/tradename

Whatman 1450-110
Whatman Article No. 28418082 (US reference)

parameter

2685 sec/100 mL speed (Herzberg)
6 psi wet burst

diam.

110 mm

thickness

0.12115 μm

ash

≤0.015%

pore size

2.7 μm (Particle retention)

basis weight

97 g/m2

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General description

Whatman Grade 50 quantitative hardened low ash filter paper is highly glazed to enable recrystallization of very fine precipitates using Büchner funnel or Hirsch funnel filtration. This hard, very thin, high wet-strength Grade 50 quantitative filter paper withstands wet handling and precipitate removal by scraping. With very minimal fiber shedding, they are an especially good choice for use as carriers in integrated circuits. Whatman low ash hardened filter paper for quantitative analysis is available in three grades. All three are designed for use in gravity and vacuum suction filtration in Buchner and Hirsch funnels. Grade 50 is also available in Smear Tab format for wipe testing, such as surface testing for radionuclide contamination.

Other Notes

Global SIAL customers (excluding Japan) can now order any product from the Cytiva Life Sciences consumables portfolio (prepack only) using GE′s product numbering system.

The legacy GE Whatman products that use the SIAL "Z" product numbering system will be discontinued and directly replaced with a product number using a "WHA" prefix plus the GE product code. For reference, the legacy "Z" product number is identified as a synonym on the "WHA" product number listing.

Legal Information

Whatman is a registered trademark of Cytiva

Regulatory Information

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