Whatman™ Non-sterile ME 25 Mixed Cellulose Ester Membranes

Offers a larger adsorption of product with a high degree of internal surface area. Whatman™ Non-sterile ME25 Mixed Cellulose Membranes are available plain for automatic colony counting applications, as well as gridded to assist in manual counting procedures.

Brand: Whatman™

Manufacturer Part Number: 10406812

UNSPSC: 41120000

Code: A0

Additional Details:
Additional Details: Weight: 0.03000kg

Product Code. 11365364

Quantity Price
1 £ 96.17 / Pack of 100
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Description and Specification


Membrane Type ME 25
Diameter (Metric) Outside 47mm
Size (Metric) Grid 3.1mm
Thickness (Metric) 145μm
Hydrophobicity Hydrophilic
Waterflow Rate 12.5 sec./100mL/12.5cm2
Product Type Mixed Cellulose Ester Membrane
Grid Color Black
Material Mixed Cellulose Ester
Color White
Autoclavable Yes
Protein Binding Capacity Medium
Surface Type Grid
Sterile No
Includes Interleaving paper
Pore Size 0.45μm
Temperature (Metric) Operating 130°C

Composed of cellulose acetate and cellulose nitrate characterized by a smooth and uniform surface. Color contrast provided by the filter surface facilitates particle detection and minimizes eye fatigue.
  • Gridded surface (3.1mm intervals) make filters ideal for colony counting after incubation
  • Special nontoxic ink used is completely free from bacterial growth inhibitors
  • Manufactured under strictly controlled cleanroom conditions
  • Pore size: 0.45μm