Polypropylene Membrane Filters, 50.0um, 50mm, Nonsterile, 100 pcs/Pk SKU: SF18188

Polypropylene (PP) Membrane Filters - SF18188

Engineered for high retention efficiency and superior chemical stability, the Tisch SF18188 achieves reliable separation results across a broad range of analytical and preparative applications. Equally important, a uniform Polypropylene (PP) matrix maintains its rated 50.0 cutoff under the pressures and flow conditions encountered during routine laboratory filtration. Together, 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

• Polypropylene (PP) membranes offer broad chemical resistance to organic solvents, strong acids, and concentrated bases.
• Naturally hydrophobic, PP is well suited for air and gas venting applications where aqueous breakthrough must be prevented.
• Low extractable levels and chemical inertness make polypropylene a reliable medium for filtering reagents prior to titration and spectroscopic analysis.
• Lightweight and mechanically flexible, polypropylene provides a cost-effective filtration medium for aggressive chemical environments.
• Water-repellent membrane surface sustains airflow in venting applications while providing a defined barrier against liquid passage.

Maintaining accreditation under ISO 17025 or similar quality frameworks requires documented traceability at every step — the specification compliance of each membrane lot supports your ongoing audit readiness. To address this, hydrophobic PP naturally vents aqueous liquids while passing gases and organic vapors, making it well suited for gas filtration and solvent venting applications. 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.

Color

White

Construction

Polypropylene (PP)

Diameter

50mm

Extractables

Very Low

Filtration Area

19.63cm²

Grid (Yes/No)

No

Material

Polypropylene (PP)

Maximum Operating Temperature (°C)

60°C

Pack Count

100

pH Range

1-14pH

Pore Size (µm)

50

Sterility

Nonsterile

Sterilization

Autoclave

Weight

0.49

Wettability

Hydrophobic

• Solvent Pre-cleaning - Removes gross contaminants from bulk solvents before they enter fine filtration loops, extending system maintenance cycles.
• Chemical Resis. Testing - Used as a test coupon to verify material compatibility with new synthetic fluids before scaling up production runs.
• Clarification Pre-filter - Placed on top of final membrane filters in vacuum funnels to catch heavy sediment and prevent rapid clogging.
• Hot Solvent Filtration - Withstands elevated temperatures during the filtration of hot saturated solutions in recrystallization protocols.
• Backflush Regeneration - Durable enough to withstand back-flushing cycles in reusable filter holders, reducing consumable waste and costs.
• Depth Filtration Stack - Provides a lofty depth matrix in stacked disc filters, increasing the dirt-holding capacity for viscous fluid streams.