PTFE Membrane, WTP Range, 1.0um Pore Size, 47mm Circle (100 pcs) SKU: 7590-004

PTFE Membrane Filters - 7590-004

Precision-manufactured Hydrophobic membrane with a verified 1.0 pore structure delivers consistent retention performance across demanding laboratory filtration workflows. Verified 1.0 pore distribution across the Hydrophobic membrane surface guarantees batch-to-batch consistency in particle capture and analyte passage. On this basis, precision manufacturing ensures that each membrane disc delivers the rated retention, flow rate, and surface consistency that analytical and microbiological methods require.

Material Specifications

• Unmatched solvent resistance allows PTFE to process chlorinated hydrocarbons, ketones, and strong oxidizers that destroy other membrane chemistries.
• Temperature stability exceeding 260°C makes PTFE the preferred membrane for hot gas sampling and elevated-temperature solvent filtration.
• Supplied in bulk non-sterile packaging, offering an economical option for routine clarification and general laboratory filtration tasks.
• Excellent for filtering aggressive acids, bases, and non-aqueous solvents.
• Near-zero extractable levels ensure PTFE membranes contribute no measurable background to mass spectrometry or trace analytical workflows.

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 non-stick surface of PTFE minimizes sample adhesion during filtration, improving your recovery of viscous or high-value samples where every microliter of filtrate matters to downstream yield calculations. Take control of your sample preparation variables and ensure that your data reflects the true nature of your work, rather than the quality of your consumables.

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

Bubble Point (psi)

4.4psi (IPA)

Color

white

Diameter

47mm

Extractables

very low

Filtration Area

17.35cm²

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

100

pH Range

1-14

Pore Size (µm)

1

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.
• 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.
• Aerosol Venting - Acts as a hydrophobic barrier in disc holders, preventing moisture entry while allowing sterile air to pass into tanks.
• Headspace Analysis - Protects gas chromatography injectors by filtering volatile organic samples without extracting background contaminants.
• Bio-fluid Degassing - Allows gas to escape from microfluidic channels while retaining aqueous liquids, preventing air locks in the system.