Polypropylene (PP) Membrane Filters - SF18056
Engineered for high retention efficiency and superior chemical stability, the Tisch SF18056 achieves reliable separation results across a broad range of analytical and preparative applications. Verified 0.1 pore distribution across the hydrophobic membrane surface guarantees batch-to-batch consistency in particle capture and analyte passage. Accordingly, each membrane disc reflects a manufacturing standard where retention characteristics, physical integrity, and dimensional accuracy are verified before release.
Material Specifications
- Lightweight and mechanically flexible, polypropylene provides a cost-effective filtration medium for aggressive chemical environments.
- Hydrophobic membrane surface provides a reliable barrier for air venting and gas filtration, preventing aqueous breakthrough under normal operating conditions.
- Low extractable levels and chemical inertness make polypropylene a reliable medium for filtering reagents prior to titration and spectroscopic analysis.
- Materials of construction maintain their mechanical and chemical properties at temperatures up to 60°C, supporting heated filtration protocols.
- Full pH spectrum durability allows PP membranes to maintain structural integrity in both strongly acidic and strongly alkaline process streams.
Environmental monitoring programs where sample-to-sample comparability determines trend validity benefit directly from the lot-level consistency of these membranes, removing the filter as a variable in your long-term data sets. With these demands in mind, because polypropylene produces extremely low extractable levels in organic solvents, your filtrate remains analytically clean — protecting the detection limits and baseline stability your chromatographic methods require. 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.
- Bubble Point (psi)
- ≥2.9 psi (IPA, 25°C)
- Color
- White
- Diameter
- 47mm
- Extractables
- Very Low
- Filtration Area
- 17.35cm²
- Flow Rate
- ≥21 mL/min/cm²
- Grid (Yes/No)
- No
- Material
- Polypropylene (PP)
- Maximum Operating Temperature (°C)
- 60°C
- Membrane Thickness (µm)
- 130-230um
- Pack Count
- 100
- pH Range
- 1-14pH
- Pore Size (µm)
- 0.1
- Sterility
- Nonsterile
- Sterilization
- Autoclave
- Weight
- 0.49
- Wettability
- Hydrophobic
- Depth Filtration Stack - Provides a lofty depth matrix in stacked disc filters, increasing the dirt-holding capacity for viscous fluid streams.
- Coarse Particulate Removal - Efficiently clears visible debris from environmental samples, preparing them for finer analytical filtration steps.
- Chemical Resis. Testing - Used as a test coupon to verify material compatibility with new synthetic fluids before scaling up production runs.
- Backflush Regeneration - Durable enough to withstand back-flushing cycles in reusable filter holders, reducing consumable waste and costs.
- Solvent Pre-cleaning - Removes gross contaminants from bulk solvents before they enter fine filtration loops, extending system maintenance cycles.
- Clarification Pre-filter - Placed on top of final membrane filters in vacuum funnels to catch heavy sediment and prevent rapid clogging.