Tisch
MCE Membrane Filter, 0.45um, 293 mm, Nonsterile, 25 Pk SKU: SF14677

Mixed Cellulose Ester (MCE) Membrane Filters - SF14677

Precision-manufactured hydrophilic membrane with a verified 0.45 pore structure delivers consistent retention performance across demanding laboratory filtration workflows. Manufactured to exacting specifications, precision-manufactured hydrophilic membrane with a verified 0.45 pore structure delivers consistent retention across the full operating range. For this reason, precision manufacturing ensures that each membrane disc delivers the rated retention, flow rate, and surface consistency that analytical and microbiological methods require.

Material Specifications

• The biologically inert blend of cellulose acetate and cellulose nitrate provides a membrane surface optimized for organism capture and colony enumeration in microbiological assays.
• Non-sterile configuration is suited for analytical sample preparation, mobile phase filtration, and other workflows where pre-sterilization is not required.
• Hydrophilic by nature, the MCE membrane structure supports high non-specific adsorption for effective organism capture.
• Maximum operating temperature of 60°C accommodates warm sample filtration and elevated-temperature processes that exceed the limits of standard devices.
• Spontaneous aqueous wettability reduces sample preparation time and eliminates the risk of solvent carryover from pre-wetting procedures.

Air monitoring and stack emissions sampling demand a filter medium that withstands the conditions at your collection point. The material properties above define that operating envelope. In this context, complete solubility in specific organic solvents lets you recover captured particles from the membrane surface for downstream gravimetric, chemical, or spectroscopic analysis. 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)

≥21.8 psi (water, 25°C)

Color

White

Diameter

293mm

Extractables

Moderate

Filtration Area

674.26cm²

Flow Rate

≥20 mL/min/cm²

Grid (Yes/No)

No

Material

Mixed Cellulose Ester (MCE)

Maximum Operating Temperature (°C)

60°C

Membrane Thickness (µm)

80-120um

Pack Count

25

pH Range

2-10pH

Pore Size (µm)

0.45

Sterility

Nonsterile

Sterilization

Autoclave, EtO, Gamma Irradiation

Support Material

PET

Weight

0.77

Wettability

Hydrophilic

• Bioburden Monitoring - Routine testing of pharmaceutical water loops to ensure bioburden levels remain within safe production specifications.
• Microscopy mounting - Can be made transparent with immersion oil, allowing for direct light microscopy of retained particles on the surface.
• Biochemical Assays - High electrostatic properties effectively bind proteins and macromolecules, supporting various diagnostic and research assays.
• Water Quality Testing - Features a gridded surface for easy colony counting, essential for regulatory compliance in municipal water quality labs.
• Black Grid Analysis - Black membrane variants enhance contrast for light-colored colonies, reducing eye strain during manual plate counting.
• Chemotaxis Assays - Acts as a barrier in Boyden chambers, allowing cells to migrate through defined pores towards a chemoattractant source.