ME27 0.8um 100mm 50/Pk SKU: 10400921

Mixed Cellulose Ester (MCE) Membrane Filters - 10400921

The Whatman 10400921 combines a controlled pore size distribution with low extractable levels, ensuring the data accuracy that sensitive analytical methods require. Underpinning this performance, verified 0.8 pore distribution across the Hydrophilic membrane surface guarantees batch-to-batch consistency in particle capture and analyte passage. Because of this, controlled production conditions produce membranes with documented pore size distribution and thickness tolerances, supporting method reproducibility across multiple filter lots.

Material Specifications

• 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.
• The biologically inert blend of cellulose acetate and cellulose nitrate provides a membrane surface optimized for organism capture and colony enumeration in microbiological assays.
• Supplied in bulk non-sterile packaging, offering an economical option for routine clarification and general laboratory filtration tasks.
• Known for excellent wetting properties and high flow rates in aqueous filtration.
• Feature a uniform pore structure that provides consistent flow rates and high throughputs across the full range of standard pore size ratings.

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. For exactly this reason, 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. Take control of your sample preparation variables and ensure that your data reflects the true nature of your work, rather than the quality of your consumables.

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

Bubble Point (psi)

18.8psi

Color

white

Diameter

100mm

Extractables

low

Filtration Area

78.54cm²

Flow Rate

150ml (Water)

Grid (Yes/No)

No

Material

Mixed Cellulose Esters (MCE)

Maximum Operating Pressure

Holder-dependent

Maximum Operating Temperature (°C)

130°C

Membrane Thickness (µm)

140um

Pack Count

50

pH Range

4-8

Pore Size (µm)

0.8

Sterility

Nonsterile

Sterilization

Autoclavable at 121°C for 30 mins

Support Material

None

Wettability

Hydrophilic

• 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.
• Aqueous Filtration - Biologically inert composition provides high flow rates and consistent reliability for routine laboratory fluid processing.
• Biochemical Assays - High electrostatic properties effectively bind proteins and macromolecules, supporting various diagnostic and research assays.
• Bioburden Monitoring - Routine testing of pharmaceutical water loops to ensure bioburden levels remain within safe production specifications.