PTFE Membrane, TE Range (TE 38), 5.0um Pore Size, 150mm Circle (25 pcs) SKU: 10411130

PTFE Membrane Filters - 10411130

Designed to deliver reproducibility and confidence across critical sample types, the Whatman 10411130 provides the filtration consistency that method validation demands. A uniform PTFE matrix maintains its rated 5.0 cutoff under the pressures and flow conditions encountered during routine laboratory filtration. Lot-level verification of pore size, flow rate, and physical dimensions ensures that membrane performance remains predictable when scaling from method development to routine analysis.

Material Specifications

• Unmatched solvent resistance allows PTFE to process chlorinated hydrocarbons, ketones, and strong oxidizers that destroy other membrane chemistries.
• Supplied in bulk non-sterile packaging, offering an economical option for routine clarification and general laboratory filtration tasks.
• Permanently hydrophobic and chemically inert, PTFE resists degradation from virtually every solvent, acid, and base encountered in laboratory applications.
• Near-zero extractable levels ensure PTFE membranes contribute no measurable background to mass spectrometry or trace analytical workflows.
• Require pre-wetting with alcohol before filtering aqueous solutions.

When your analytical method specifies membrane filtration as a sample preparation step, the retention characteristics and extractable profiles documented above allow you to meet method requirements without additional qualification work. To that end, 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)

4.4psi (IPA)

Color

white

Diameter

150mm

Extractables

very low

Filtration Area

176.71cm²

Flow Rate

15 L (Air)

Grid (Yes/No)

No

Material

Polytetrafluoroethylene (PTFE)

Maximum Operating Pressure

Holder-dependent

Maximum Operating Temperature (°C)

120°C

Membrane Thickness (µm)

165um

Pack Count

25

pH Range

1-14

Pore Size (µm)

5

Sterility

Nonsterile

Sterilization

Autoclavable at 121°C for 30 mins

Support Material

Polypropylene Backing

Wettability

Hydrophobic

• Off-Gas Analysis - Filters exhaust gases from fermentation vessels, protecting analyzers from moisture and foam while passing metabolic gases.
• Headspace Analysis - Protects gas chromatography injectors by filtering volatile organic samples without extracting background contaminants.
• Aerosol Venting - Acts as a hydrophobic barrier in disc holders, preventing moisture entry while allowing sterile air to pass into tanks.
• Bio-fluid Degassing - Allows gas to escape from microfluidic channels while retaining aqueous liquids, preventing air locks in the system.
• Aggressive Solvent Prep - Filters extremely corrosive acids and bases in reusable glass holders, offering unmatched chemical inertness in the lab.
• Trace Metal Sampling - Used in clean-room environments to filter samples for ICP-MS, ensuring no metallic leachables contaminate the results.