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Whatman™ 7141-104
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Whatman™ Sterile Mixed Cellulose Ester Membrane Filter, 0.45 µm Pore Size, 47 mm dia

Membrane Filter, 47 mm dia, White/Black, Mixed Cellulose Ester, 0.45 µm Pore Size, Circle Format, Gridded, WME Range, 140 µm Thickness, 74 to 77% Porosity, 3.1 mm Grid Size, 4.3 to 5 mg/cm2 Basis Weight, Sterile, Autoclavable, With Pad

  • Manufacturer Part No: 7141-104
  • SECO Part No: 12-4534-01
  • Sold As:
  • Availability: loading

Whatman mixed cellulose ester membranes are composed of cellulose acetate and cellulose nitrate. These membranes are characterized by a smoother and more uniform surface than pure nitrocellulose filters. Also, the color contrast provided by the filter surface facilitates particle detection and minimizes eye fatigue. The ME range has a lower cellulose acetate content compared to the WME range of membranes.

Diameter : 47 mm
Color : White
Grid Color : Black
Material (ml/min) : Mixed Cellulose Ester
Grid Size : 3.1 mm
Pore Size : 0.45 µm
Sterility : Sterile
Type : Gridded, WME Range
Burst Pressure : >10 psi
Format : Circle
Interleaving Paper : Yes
Nominal Basis Weight : 4.3 to 5 mg/cm2
Operating Temperature : 130°C
Porosity : 74 to 77%
Protein Binding : Medium
Solvent Resistancy : Medium
Thickness : 140 µm
Application : For Higher Flow Rates and Larger Volume Filtration Including Clarification or Sterilization of Aqueous Solutions, Particulate Analysis and Removal, Air Monitoring and Microbial Analysis
Autoclavable : Yes
For Membrane Butler : No
With : With Pad
  • 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
  • The membrane offers a high degree of internal surface area for greater adsorption of product
  • Higher dirt loading capacity
  • Biologically inert with good thermal stability
  • No surfactants to contaminate samples
  • Uniform microporous structure of membrane gives high flow rates
  • Eased counting process
  • pdf Brochure /ASSETS/DOCUMENTS/ITEMS/EN/10400012.pdf

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