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Thumbnail Filmstrip of MCE Circle ME Range (ME 25), White/Black Grid 3.1mm, 0.45um Pore Size, 50mm, 100Pk Images
Mixed Cellulose Ester (MCE) Membrane Filters - 10406814
The Whatman 10406814 protects sensitive instrumentation and sample integrity by providing reliable particulate removal with minimal analyte adsorption or background interference. Designed for laboratory performance, reproducible separation characteristics define the membrane structure, protecting downstream instruments and preserving sample integrity throughout the filtration process. Taken together, consistent surface properties across the full membrane area support uniform particle capture and reliable results in gravimetric, microscopic, and culture-based analytical workflows.
Material Specifications
- Feature a uniform pore structure that provides consistent flow rates and high throughputs across the full range of standard pore size ratings.
- The biologically inert blend of cellulose acetate and cellulose nitrate provides a membrane surface optimized for organism capture and colony enumeration in microbiological assays.
- Individually packaged and validated by Gamma irradiation to provide documented sterility assurance for aseptic applications.
- Known for excellent wetting properties and high flow rates in aqueous filtration.
- Mixed Cellulose Ester membranes combine cellulose acetate and cellulose nitrate polymers to deliver a smoother, more flexible membrane surface than pure cellulose nitrate.
Scaling your method from development to routine production requires membrane consistency at every lot — the documented specifications of these membranes provide the reproducibility needed to validate the filtration step once. In particular, low background interference from mixed cellulose ester membranes means your gravimetric measurements reflect the mass of captured particles, not membrane extractables — reducing the blank corrections that add uncertainty to your weight-based analyses. 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)
- 40.6psi
- Color
- white
- Diameter
- 50mm
- Extractables
- low
- Filtration Area
- 19.63cm²
- Flow Rate
- 60ml (Water)
- Grid (Yes/No)
- Yes
- Material
- Mixed Cellulose Esters (MCE)
- Maximum Operating Pressure
- Holder-dependent
- Maximum Operating Temperature (°C)
- 130°C
- Membrane Thickness (µm)
- 145um
- Pack Count
- 100
- pH Range
- 4-8
- Pore Size (µm)
- 0.45
- Sterility
- Sterile
- Sterilization
- Supplied Sterile (Single Use)
- Support Material
- None
- Wettability
- Hydrophilic
- Microscopy mounting - Can be made transparent with immersion oil, allowing for direct light microscopy of retained particles on the surface.
- Black Grid Analysis - Black membrane variants enhance contrast for light-colored colonies, reducing eye strain during manual plate counting.
- Yeast & Mold Monitoring - Optimized for the recovery of larger fungal organisms in beverage testing, providing a clear background for ID.
- Water Quality Testing - Features a gridded surface for easy colony counting, essential for regulatory compliance in municipal water quality labs.
- Gravimetric Analysis - Maintains structural integrity during filtration and drying, providing precise weight measurements of retained particulates.
- Bioburden Monitoring - Routine testing of pharmaceutical water loops to ensure bioburden levels remain within safe production specifications.