PTFE Membrane, TE Range (TE 37), 1.0um Pore Size, 25mm Circle (50 pcs) SKU: 10411205

PTFE Membrane Filters - 10411205

The Whatman 10411205 protects sensitive instrumentation and sample integrity by providing reliable particulate removal with minimal analyte adsorption or background interference. Quality-controlled manufacturing ensures the filtration medium delivers the retention efficiency and throughput that demanding laboratory protocols require. Each membrane disc reflects a manufacturing standard where retention characteristics, physical integrity, and dimensional accuracy are verified before release.

Material Specifications

• Unmatched solvent resistance allows PTFE to process chlorinated hydrocarbons, ketones, and strong oxidizers that destroy other membrane chemistries.
• Near-zero extractable levels ensure PTFE membranes contribute no measurable background to mass spectrometry or trace analytical workflows.
• Packaged without sterilization for applications where downstream sterility is achieved by other means or is not a process requirement.
• Permanently hydrophobic and chemically inert, PTFE resists degradation from virtually every solvent, acid, and base encountered in laboratory applications.
• Excellent for filtering aggressive acids, bases, and non-aqueous solvents.

Microbial enumeration methods require complete retention at the rated pore size and a surface that supports colony growth without inhibition, and the membrane specifications above confirm both requirements for your culture-based workflows. The inherently hydrophobic surface of PTFE provides a natural barrier for air and gas venting applications, allowing you to sterilize gas streams or vent fermentation vessels without liquid breakthrough at normal operating pressures. 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)

4.4psi (IPA)

Color

white

Diameter

25mm

Extractables

very low

Filtration Area

4.91cm²

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

50

pH Range

1-14

Pore Size (µm)

1

Sterility

Nonsterile

Sterilization

Autoclavable at 121°C for 30 mins

Support Material

Polypropylene Backing

Wettability

Hydrophobic

• Trace Metal Sampling - Used in clean-room environments to filter samples for ICP-MS, ensuring no metallic leachables contaminate the results.
• Aggressive Solvent Prep - Filters extremely corrosive acids and bases in reusable glass holders, offering unmatched chemical inertness in the lab.
• PM2.5 Air Monitoring - The regulatory standard for weighing fine air particulates, ensuring minimal moisture absorption affects the final mass.
• 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.
• Headspace Analysis - Protects gas chromatography injectors by filtering volatile organic samples without extracting background contaminants.