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Whatman™ WTP Range PTFE Membranes


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

Manufacturer: whatman™  7585-004

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Catalog No. 09-900-7

  • / Pack of 100 Each
 

Description & Specifications

Specifications

Pore Size 0.5μm
Material Polytetrafluoroethylene (PTFE)
Diameter (Metric) Outer 47mm
Quantity (No. per Case) 100Pack
Gas Flow Rate 7.5L/min/cm2
Wettability Hydrophobic
Membrane Type WTP

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.

Applications:

 

  • 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)