Ahlstrom Grade 627 Qualitative Filter Paper - 100 Circles

SKU: F254~pk

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Ahlstrom Grade 627 Qualitative Filter Paper - 100 Circles - 9.75in Diameter

Asphalt testing grade filter paper. Features a high loading capacity grade and is almost twice as thick as Grade 237.

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.

Ahlstrom’s qualitative grades of filter paper are, by definition, recommended for use in analytical methods, which determine or identify particulate constituents of a mixture irrespective of the amount present. Qualitative filter papers are often used in routine separation work that still requires high purity and consistent performance.

Grade: 627
Retention in µm: 4.0µm
Filtration Speed punch Herzberg sec/100mls: 80s/100 mL
Filtration Speed Rapidity mls/min: 85 mL/min
Loading Capacity: High

SKU	Diameter	Center Hole Size
F254	9.75 in	1.75 in
F264	9.75in	5 in
F266	10.43 in	1.75 in
F267	12.25 in	5 in

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Ahlstrom Grade 627 Qualitative Filter Paper - 100 Circles

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