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.

Brand: Whatman™

Manufacturer Part Number: 7590-002

X100 MB S WTP 25MM100/PK

UNSPSC: 41120000

Code: A0

Additional Details:
Additional Details: Weight: 0.08000kg

Product Code. 11305094

Quantity Price
1 £423.50 / Pack of 100
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Description and Specification


Pore Size 1.0μm
Material Polytetrafluoroethylene (PTFE)
Diameter (Metric) Outer 25mm
Quantity (No. per Case) 100Pack
Gas Flow Rate 17L/min/cm2
Thickness 90μm
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.



  • 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)