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Thumbnail Filmstrip of PTFE Membrane Filter, Hydrophobic, Nonsterile - 0.45µm, 142mm, PP Scrim Support, 25/pk Images
Featuring ultra-pure polytetrafluoroethylene membrane technology with polypropylene scrim reinforcement delivering exceptional chemical compatibility for aggressive solvent filtration applications. PTFE membranes are extremely hydrophobic and exhibit superior chemical compatibility with aggressive solutions, while the 0.45µm pore configuration provides precise particulate retention for non-aqueous sample preparation and phase separation protocols. Advanced bonding techniques utilizing no bonding agents ensure ultra-low extractables and maximum chemical purity for critical analytical applications.
Key PTFE Membrane Characteristics
- Inherently hydrophobic construction will not absorb moisture from air or gases, maintaining consistent performance in venting applications and aerosol sampling
- 0.45µm nominal pore size delivers reliable separation of polar and nonpolar solvents while enabling methanol prewetting for aqueous filtration
- Ideal for venting, phase separations, and aerosol sampling with exceptional chemical resistance to most organic solvents and acids
- PTFE allows air to pass easily through the membrane while collecting particulate as small as 0.1 micron on its surface
- Ultra-low extractables construction eliminates sample contamination in trace analysis and pharmaceutical applications
Key Construction Characteristics
- Polypropylene scrim support provides enhanced handling strength while maintaining chemical compatibility and reducing membrane tearing during installation
- 142mm diameter accommodates large volume filtration requirements and standard filter holder configurations for laboratory and process applications
- Unique thermal bonding technique eliminates adhesives and bonding agents, ensuring maximum purity and minimal sample interference
- Autoclavable up to 130°C enabling sterilization protocols for sterile filtration and validated pharmaceutical processing
- White membrane appearance with interleaved separator papers facilitates easy handling and individual membrane identification during high-throughput processing
LE-IWT-PTFE-045142 membranes achieve outstanding chemical resistance to aggressive solvents, acids, and bases except hydrofluoric acid, maximizing your analytical flexibility when processing corrosive samples and industrial effluents. Hydrophobic membrane filters are sometimes used with water or aqueous solutions; and, in these applications, they must first be prewet with a low surface tension, water miscible fluid prior to use. The reinforced scrim construction transforms these filters into robust, tear-resistant media providing enhanced durability for extended filtration cycles while delivering the chemical purity and performance reliability demanded by pharmaceutical, environmental, and industrial laboratory applications requiring both superior chemical compatibility and validated analytical accuracy.
- Diameter
- 142mm
- Material
- Polytetrafluoroethylene (PTFE)
- Millipore Equivalent
- FHLP14250
- Pack Count
- 25
- Pall Equivalent
- 66151
- Pore Size (µm)
- 0.45
- Sartorius Equivalent
- 11806-142------G
- Sterility
- Nonsterile
- Weight
- 0.75
- Wetability
- Hydrophobic