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Whatman™ Mixed Cellulose Ester Membranes

Facilitates particle detection and minimizes eye fatigue with surface marks and color contrast. Whatman™ Mixed Cellulose Ester Membranes are available plain or gridded for automatic or manual counting procedures.

Manufacturer: whatman™  WHT10400912

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Catalog No. 09-927-189

  • / Pack of 100 Each

Description & Specifications


Size (Metric) Grid 3.1mm
Membrane Type ME 27
Diameter (Metric) Outside 47mm
Quantity 100Pack
Grid Color Plain
Diameter (English) Outside 1.85 in.
Sterile No
Material Mixed Cellulose Ester
Temperature (Metric) Operating 130°C
Protein Binding Capacity Medium
Waterflow Rate 2.8 sec./100mL/12.5cm2
Autoclavable Yes
Pore Size 0.8μm
Product Type Mixed Cellulose Ester Membrane
Temperature (English) Operating 266°F
Thickness (Metric) 135μm
Includes Interleaving paper

Offers a high degree of internal surface area for greater adsorption of product.
  • Excellent contrast for easier particle detection.
  • Grids are nontoxic and do not inhibit bacterial growth, ensuring sample integrity.
  • Black plain and black gridded membranes have a mix of cellulose nitrate and cellulose acetate.
  • Higher dirt loading capacity.
  • Biologically inert with good thermal stability.
  • No surfactants to contaminate samples.
  • Uniform microporous structure of membrane gives high flow rates.
  • Special nontoxic ink used is completely free from bacterial growth inhibitors
  • Manufactured under strictly controlled cleanroom conditions