wwPTFE Membrane Disc Filter - 0.45um, 25mm, 50/Pk SKU: 60547

Water-Wettable PTFE Membrane Filters - 60547

Engineered for high retention efficiency and superior chemical stability, the Pall 60547 achieves reliable separation results across a broad range of analytical and preparative applications. Constructed for reliable operation, universal chemical resistance inherited from the PTFE base polymer protects against degradation by aggressive organic solvents, concentrated acids, and strong bases. In effect, consistent surface properties across the full membrane area support uniform particle capture and reliable results in gravimetric, microscopic, and culture-based analytical workflows.

Material Specifications

• Filters both aqueous and organic samples interchangeably without membrane changes, simplifying workflows that process mixed-polarity sample sets.
• Broad solvent compatibility spans aggressive acids, bases, alcohols, and organic solvents that would degrade PES, nylon, and cellulose-based alternatives.
• Stable performance at operating temperatures reaching 55°C ensures the membrane handles heated applications without pore distortion or structural compromise.
• Supplied in bulk non-sterile packaging, offering an economical option for routine clarification and general laboratory filtration tasks.
• Near-zero extractable levels protect analytical sensitivity in HPLC sample preparation and trace-level chemical analysis where background interference is critical.

Reproducible particle counting starts with a membrane surface that captures particles uniformly. The pore consistency documented above ensures your counts reflect the sample, not filter variation. To address this, the chemical compatibility range documented for this device allows you to verify suitability for your specific sample matrix before processing, avoiding the mid-filtration failures that waste both sample and time. Secure your research outcomes by partnering with a filtration solution that understands your need for speed, accuracy, and reproducibility.

For more information about chemical compatibility, please review our Chemical Compatibility Chart.

Bubble Point (psi)

9.1psi

Color

White

Diameter

25mm

Extractables

< 0.5% (Trace)

Filtration Area

4.08cm²

Flow Rate

15 mL/min/cm²

Grid (Yes/No)

No

Material

PTFE

Maximum Operating Pressure

75psi

Maximum Operating Temperature (°C)

55°C

Membrane Thickness (µm)

150 – 200µm

Pack Count

50

pH Range

1-14

Pore Size (µm)

0.45

Sterility

Nonsterile

Sterilization

Autoclavable at 121°C for 15-20 min

Support Material

Polypropylene

Wettability

Hydrophilic

• Multiphase Filtration - Processes emulsions and biphasic mixtures efficiently, allowing both the oil and water phases to pass through.
• Chromatography Guard - Protects analytical columns by filtering samples in-line, preventing particulate buildup on the expensive column frit.
• Natural Product Prep - Clarifies crude plant extracts containing mixed polarities, ensuring all active compounds are retained in the filtrate.
• Aggressive pH Filtering - Handles extreme pH solutions in environmental analysis, from acid mine drainage to caustic industrial wastewater.
• Dissolution Calibration - Used to filter calibration standards in dissolution baths, ensuring drug recovery matches the test samples exactly.
• Reaction Monitoring - Clarifies aliquots from ongoing chemical synthesis reactions, handling changing solvent polarities without failure.