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

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

Catalog No. 098036B Shop All Fisherbrand Products
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Diameter (Metric):
42.5 mm
55 mm
70 mm
90 mm
110 mm
125 mm
150 mm
185 mm
205 mm
240 mm

Description

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

  • 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 MgNH4PO4, silver sulfide, cadmium sulfide. In air monitors, collects particulates and chromic acid mist.

TRUSTED_SUSTAINABILITY

Specifications

Format Disc
Particle Retention 4 to 8 μm
Filtration Speed 730 sec.
Flow Rate Slow: 25mL/min.
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
Grade P4
Porosity Medium Fine
Diameter (Metric) 55 mm
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