Tisch
PTFE Syringe Filters, 5.0um, 30mm, Luer-Lok/Luer Slip, Nonsterile, 100/Pk SKU: SF18325

Polytetrafluoroethylene (PTFE) Syringe Filters - SF18325

Featuring hydrophobic PTFE membrane technology with 5.0µm pore size for efficient prefiltration and coarse particle removal from aggressive solvents. Large 30mm diameter filters deliver exceptional 280ml flow rates while protecting downstream fine filters in multi-stage filtration systems. Polypropylene housing construction withstands pressures up to 87psi, ensuring reliable performance with chemically demanding samples.

Key Polytetrafluoroethylene (PTFE) Membrane Characteristics

• Hydrophobic membrane design effectively prefilters organic solvents, acids, and bases without chemical degradation
• Coarse 5.0µm pore size removes large particles, precipitates, and visible contaminants from sample solutions
• Superior chemical resistance from strong carbon-fluorine bonds maintains integrity in aggressive solvent systems
• Membrane thickness of 80-140µm provides optimal flow characteristics for high-throughput sample processing
• Autoclavable at 121°C for 30 minutes or gamma sterilizable at 25kGy for contamination-free applications

Key Construction Characteristics

• Polypropylene housing material ensures broad chemical compatibility with organic and inorganic solvents
• Large 30mm diameter provides 4.9cm² filtration area for rapid processing of large sample volumes
• Low holdup volume of 100µL minimizes sample loss during prefiltration of valuable materials
• Luer-Lok/Luer Slip dual connection compatibility accommodates all standard syringe configurations

SF18325 filters maximize your prefiltration efficiency with an impressive 280ml flow rate, significantly reducing processing time for large-volume samples. The maximum operating temperature of 60°C accommodates warm solvent filtration while the 120ml volume throughput capacity ensures consistent performance across multiple samples. Bubble point specification of 1.45psi using absolute ethyl alcohol confirms membrane integrity for your critical prefiltration requirements.

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

Bubble Point (psi)

1.45(absolute ethyl alcohol ）

Connection Type

Luer-Lok/ Luer Slip

Construction

PP

Diameter

30mm

Filtration Area

4.9cm²

Flow Rate

280ml

Holdup Volume

100μL

Material

Polytetrafluoroethylene (PTFE)

Maximum Operating Pressure

87psi

Maximum Operating Temperature (°C)

60°C

Membrane Thickness (µm)

80-140μm

Pack Count

100

Pore Size (µm)

5

Sterility

NonSterile

Sterilization

Autoclave 121°C for 30min/ Gamma 25kGy

Volume Throughput (ml)

120ml

Weight

0.91

Wetability

Hydrophobic

• Coarse Prefiltration Protection - Removes large particles and precipitates, protecting expensive 0.22µm or 0.45µm downstream filters from premature fouling
• Viscous Sample Clarification - Prefilters high-viscosity oils, concentrated polymer solutions, and viscous formulations before downstream fine filtration
• HPLC Guard Filtration - Extends analytical column lifetime by removing large particulates from injection samples before chromatographic separation
• Precipitate Removal Processing - Clarifies crystallized solutions and removes solid precipitates from organic synthesis reactions and chemical processes
• Environmental Sample Preparation - Prefilters soil extracts, wastewater samples, and environmental matrices for analytical testing and characterization
• Formulation Prefiltration Quality - Removes undissolved excipients and aggregates from pharmaceutical and cosmetic formulations before sterile filtration