Whatman 7582-004 PTFE White PTFE Membrane Filters, 47mm Diameter, 0.2 Micron (Pack of 100)

These 47mm PTFEmembrane filters are an excellent choice for use with aggressive solvents, liquids and gases that can attack other membranes. They are resistant to most acids, alkalis and solvents. PTFE membranes are particularly suitable for preparing samples for HPLC analysis. The hydrophobic nature of the membrane also has applications for air and gas sterilization. The membrane is laminated onto a non-woven polypropylene support web for improved strength and handling and can be used at temperatures up to 120°C. WTP membranes use a polypropylene grid as a support medium. Diameter: 47mm. Pore size: 0.2µm. Thickness: 130µm. Porosity: 72%. 100/Pack. Whatman #: 7582-004.