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
|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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