2428698

Fisherbrand™ Qualitative Grade Plain Filter Paper Circles and Sheets - P4 Grade

Ideal for clarifying and removing particles of 1μm and larger, and in applications that do not require a low-ash or ashless paper

Manufacturer: Fischer Scientific

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Format

Disc

Filtration Speed

730 sec.

For Use With (Application)

General purpose: slightly slower, more retentive than P5. Retains MgNH4PO4, silver sulfide, cadmium sulfide. In air monitors, collects particulates and chromic acid mist

Porosity

Medium Fine

Particle Retention

4 to 8 μm

Flow Rate

Slow: 25mL/min.

Grade

P4

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Description

  • Cellulose fiber papers Available as circular, rectangular, and square sheets Good wet strength Suitable for gravity, vacuum filtration systems and low suction filtration Particle Retention: 4–8μm Medium-fine porosity Filtration Speed: Herzberg, 730 sec
  • Flowrate: Slow—25mL/min
  • Surface: Smooth Not suitable for nitrogen analysis
  • Applications: General purpose: slightly slower, more retentive than P5
  • Retains MgNH 4 PO 4 , silver sulfide, cadmium sulfide
  • In air monitors, collects particulates and chromic acid mist.

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Disc

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730 sec.

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General purpose: slightly slower, more retentive than P5. Retains MgNH4PO4, silver sulfide, cadmium sulfide. In air monitors, collects particulates and chromic acid mist

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Medium Fine

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