Cat #: 35-502

Ahlstrom 6090-0425 Qualitative Filter Papers, Standard, Grade 609, 4.25cm, 100/Unit

Ahlstrom 6090-0425 Qualitative Filter Papers, Standard, Grade 609, 4.25cm, 100/Unit primary image
Ahlstrom 6090-0425 Qualitative Filter Papers, Standard, Grade 609, 4.25cm, 100/Unit secondary image
Ahlstrom 6090-0425 Qualitative Filter Papers, Standard, Grade 609, 4.25cm, 100/Unit tertiary image
Ahlstrom 5130-1250 Pleated (Fluted) Qualitative Filter Paper, Grade 513, 12.5cm, 100/Unit quaternary image
Ahlstrom 6090-0425 Qualitative Filter Papers, Standard, Grade 609, 4.25cm, 100/Unit primary image
Ahlstrom 6090-0425 Qualitative Filter Papers, Standard, Grade 609, 4.25cm, 100/Unit primary image
Ahlstrom 6090-0425 Qualitative Filter Papers, Standard, Grade 609, 4.25cm, 100/Unit secondary image
Ahlstrom 6090-0425 Qualitative Filter Papers, Standard, Grade 609, 4.25cm, 100/Unit tertiary image
Ahlstrom 5130-1250 Pleated (Fluted) Qualitative Filter Paper, Grade 513, 12.5cm, 100/Unit quaternary image

Cat #: 35-502

Ahlstrom 6090-0425 Qualitative Filter Papers, Standard, Grade 609, 4.25cm, 100/Unit


Grade 609, 4.25cm

100/Unit

Brand: Ahlstrom

  • Low ash content 0.06%
  • Super refined alpha cellulose
  • 4µm – Medium Speed
  • Case Qty: 100

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Grade 609, 4.25cm

100/Unit

Brand: Ahlstrom

  • Low ash content 0.06%
  • Super refined alpha cellulose
  • 4µm – Medium Speed
  • Case Qty: 100

This grade is an evolution of Ahlstrom 613 for use in the beer industry. This is a filter paper with an extremely low iron and nitrogen content for the analysis of protein in beer.

Standard qualitative filter papers are suitable for quadrant folded or gravity flow applications. These grades contain a high level of alpha-cellulose that provides high purity but will weaken when wet. The inherent strength of standard (untreated) grades does not pose a problem when they are used in routine quadrant folded applications. We do not recommend these grades for use in vacuum work or when wet handling is required.

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