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GE Healthcare Whatman™ WTP Range PTFE Membranes

Suited for applications involving aggressive organic solvents, strong acids, and alkalis due to being chemically stable and inert. Whatman™ WTP Range PTFE Membranes are particularly suitable for preparing samples for HPLC analysis, air and gas sterilization.

Manufacturer:  GE Healthcare 7585004

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Catalog No. 09-900-7

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PTFE stretched film, laminated to a nonwoven polypropylene support web>
  • Naturally hydrophobic
  • 0.5µm size is generally used for sample prefiltering in HPLC analyses for sample filtration where any solid particles can cause permanent damage to column
  • 0.2µm size is used in sterile venting of vacuum manifolds and sterile filtrate tanks and containers


Use up to 120°C (248°F); higher temperatures will cause laminate to soften.



  • Clarification of corrosives, solvents, and aggressive fluids
  • Collecting moist dusts for subsequent analysis (0.5 and 1.0µm pore sizes)
  • Air and gas sterilization (0.2 and 0.5µm pore sizes)


Polytetrafluoroethylene (PTFE)
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