MCE Designed for TOC Determinations, .45 um, Prerinsed, 142mm Diameter, 50/Pk SKU: SF181128

Mixed Cellulose Ester (MCE) Membrane Filters - SF181128

Precision-manufactured hydrophilic membrane with a verified 0.45 pore structure delivers consistent retention performance across demanding laboratory filtration workflows. Engineered for demanding applications, reproducible separation characteristics define the membrane structure, protecting downstream instruments and preserving sample integrity throughout the filtration process. In combination, from raw polymer through final inspection, the manufacturing process is designed to ensure that every membrane disc meets the performance specifications of its grade designation.

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.
• Known for excellent wetting properties and high flow rates in aqueous filtration.
• Bulk format reduces per-unit packaging waste and cost, appropriate for routine particulate removal and clarification where aseptic handling is not specified.
• Low tare weight and complete solubility in organic solvents make MCE the standard membrane for gravimetric particulate analysis where method specifications demand minimal blank correction.
• Uniform hydrophilic surface properties ensure complete membrane utilization during aqueous filtration, preventing dry spots that reduce effective area.

Reporting filtration parameters alongside your analytical results demands documented pore size, material chemistry, and lot traceability — the membrane specifications above provide the specificity that reviewers and auditors expect. The high porosity of MCE membranes delivers flow rates that keep your sample throughput practical even at the tighter pore sizes used for bacterial retention and fine particle analysis. Secure your research outcomes by partnering with a filtration solution that understands your need for speed, accuracy, and reproducibility.

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

Bubble Point (psi)

≥21.8 psi (water, 25°C)

Color

White

Diameter

142mm

Extractables

Moderate

Filtration Area

158.37cm²

Flow Rate

≥27 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

50

pH Range

2-10pH

Pore Size (µm)

0.45

Sterility

Nonsterile

Sterilization

Autoclave, EtO, Gamma Irradiation

Support Material

PET

Weight

0.84

Wettability

Hydrophilic

• Biochemical Assays - High electrostatic properties effectively bind proteins and macromolecules, supporting various diagnostic and research assays.
• Yeast & Mold Monitoring - Optimized for the recovery of larger fungal organisms in beverage testing, providing a clear background for ID.
• Black Grid Analysis - Black membrane variants enhance contrast for light-colored colonies, reducing eye strain during manual plate counting.
• Aerosol Analysis - Dissolves completely in acid digestion, allowing for the total chemical analysis of captured airborne metal particulates.
• Bioburden Monitoring - Routine testing of pharmaceutical water loops to ensure bioburden levels remain within safe production specifications.
• Aqueous Filtration - Biologically inert composition provides high flow rates and consistent reliability for routine laboratory fluid processing.