PTFE Membrane Filters, 5.00 um, 25mm, Nonsterile, 100/Pk SKU: SF13870

PTFE Membrane Filters - SF13870

Engineered for high retention efficiency and superior chemical stability, the Tisch SF13870 achieves reliable separation results across a broad range of analytical and preparative applications. Verified 5.0 pore distribution across the hydrophobic membrane surface guarantees batch-to-batch consistency in particle capture and analyte passage. Controlled production conditions produce membranes with documented pore size distribution and thickness tolerances, supporting method reproducibility across multiple filter lots.

Material Specifications

• Require pre-wetting with alcohol before filtering aqueous solutions.
• Temperature stability exceeding 260°C makes PTFE the preferred membrane for hot gas sampling and elevated-temperature solvent filtration.
• Near-zero extractable levels ensure PTFE membranes contribute no measurable background to mass spectrometry or trace analytical workflows.
• Hydrophobic construction enables filtration of aggressive organic solvents without the membrane swelling or degradation that affects hydrophilic alternatives.
• Unmatched solvent resistance allows PTFE to process chlorinated hydrocarbons, ketones, and strong oxidizers that destroy other membrane chemistries.

Environmental monitoring programs where sample-to-sample comparability determines trend validity benefit directly from the lot-level consistency of these membranes, removing the filter as a variable in your long-term data sets. To address this, for aggressive solvent recovery and waste stream filtration, PTFE's inertness allows you to reclaim expensive solvents through filtration without introducing extractable contamination from the filter medium into your recovered material. Make the decision for consistency and reliability, ensuring that your laboratory maintains its reputation for high-quality, error-free output.

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

Bubble Point (psi)

≥1.0 psi (IPA, 25°C)

Color

White

Diameter

25mm

Extractables

Very Low

Filtration Area

4.91cm²

Flow Rate

≥196 mL/min/cm²

Grid (Yes/No)

No

Material

Polytetrafluoroethylene (PTFE)

Maximum Operating Temperature (°C)

120°C

Membrane Thickness (µm)

170-350um

Pack Count

100

pH Range

1-14pH

Pore Size (µm)

5

Sterility

Nonsterile

Sterilization

Autoclave

Support Material

PP

Weight

0.05

Wettability

Hydrophobic

• Cryogenic Filtration - Retains integrity at sub-zero temperatures, making it ideal for filtering liquid nitrogen or chilled reaction solvents.
• Bio-fluid Degassing - Allows gas to escape from microfluidic channels while retaining aqueous liquids, preventing air locks in the system.
• Off-Gas Analysis - Filters exhaust gases from fermentation vessels, protecting analyzers from moisture and foam while passing metabolic gases.
• Aggressive Solvent Prep - Filters extremely corrosive acids and bases in reusable glass holders, offering unmatched chemical inertness in the lab.
• Headspace Analysis - Protects gas chromatography injectors by filtering volatile organic samples without extracting background contaminants.
• Trace Metal Sampling - Used in clean-room environments to filter samples for ICP-MS, ensuring no metallic leachables contaminate the results.