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
- 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: 48µm
- Medium-fine porosity
- Filtration Speed: Herzberg, 730 sec.
- Flowrate: Slow25mL/min.
- Surface: Smooth
Not suitable for nitrogen analysis.
General purpose: slightly slower, more retentive than P5. Retains MgNH4PO4, silver sulfide, cadmium sulfide. In air monitors, collects particulates and chromic acid mist.
|General purpose: slightly slower, more retentive than P5. Retains MgNH4PO4, silver sulfide, cadmium sulfide. In air monitors, collects particulates and chromic acid mist|
|4 to 8μm|
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