Tisch
PTFE Syringe Filters, 0.22 um, 25mm, Luer-Lok/Luer Slip, Nonsterile, 100/Pk SKU: SF14468

Polytetrafluoroethylene (PTFE) Syringe Filters - SF14468

Featuring hydrophobic PTFE membrane technology delivering universal chemical resistance for sterile-grade filtration of aggressive organic solvents. A 0.22µm pore configuration ensures complete bacterial removal while maintaining absolute inertness to concentrated acids, bases, and challenging reagents. Tisch Scientific combines ultra-resistant PTFE membranes with optimized 25mm construction for efficient processing of chemically aggressive samples requiring microbiological control.

Key Polytetrafluoroethylene (PTFE) Membrane Characteristics

• Hydrophobic membrane requires alcohol pre-wetting for aqueous solution filtration
• Universal chemical resistance withstands all organic solvents, acids, and bases without degradation
• Superior thermal stability maintains integrity at 60°C continuous operating conditions
• 0.22µm absolute pore rating provides complete bacterial and microorganism removal
• Autoclavable construction enables sterilization at 121°C for validated protocols

Key Construction Characteristics

• Polypropylene housing delivers chemical resistance while withstanding 87psi burst pressure
• Dual Luer-Lok/Luer Slip compatibility ensures secure connection with all syringe types
• Standard 25mm diameter balances flow rate with filtration efficiency for routine applications
• 100µl holdup volume minimizes loss when processing valuable reagents and limited samples

SF14468 syringe filters maintain consistent 18ml/min flow rates through a 4.08cm² active membrane area, providing controlled sterile filtration for your most aggressive chemical applications. Exceptional 100ml throughput capacity maximizes your laboratory efficiency when processing challenging solvents requiring bacterial control. Autoclave compatibility at 121°C transforms nonsterile units into validated sterile filters, delivering flexibility for your critical applications demanding both absolute chemical resistance and certified microbiological retention.

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

Bubble Point (psi)

17.4(absolute ethyl alcohol ）

Burst Pressure (psi)

87psi.

Connection Type

Luer-Lok/ Luer Slip

Construction

PP

Diameter

25mm

Filtration Area

4.08cm²

Flow Rate

18ml

Holdup Volume

100μL

Incompatibility

Aqueous samples without rewetting

Material

Polytetrafluoroethylene (PTFE)

Maximum Operating Pressure

87psi

Maximum Operating Temperature (°C)

60°C

Membrane Thickness (µm)

80-140μm

Pack Count

100

Pore Size (µm)

0.22

Sterility

NonSterile

Sterilization

Autoclave 121°C for 30min/ Gamma 25kGy

Volume Throughput (ml)

100ml

Wetability

Hydrophobic

• Aggressive solvents - Sterile filtration of DMF, DMSO, THF, and chloroform, maintaining purity
• Sterile filtration - Complete bacterial removal from non-aqueous pharmaceutical preparations
• HPLC sample prep - Protection of columns from particulates and bacteria in organic phases
• Strong acid filtration - Safe sterile filtration of concentrated HCl, H2SO4, and HNO3 solutions
• Air and gas venting - Hydrophobic barrier provides sterile gas passage, blocking liquid intrusion
• Protein precipitation - Sterile clarification after TCA or organic solvent precipitation