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GE Whatman<sup>®</sup> ME25, 50 mm, Sterile Mixed Cellulose Ester Membranes, Gridded

GE Whatman® ME25, 50 mm, Sterile Mixed Cellulose Ester Membranes, Gridded

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.

• Sterile options available for critical applications.
• 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

Image(s) are representative of the product group and not necessarily the individual product.
Catalog Item Availability Mfr. Part # List Price Unit
889-77949 ME25, black/white grid 3.1 mm, sterile, 0.45 um pore size, 50 mm - 100 ea

10409772 $148.45 PK
889-77886 ME25, white/black grid 5 mm, sterile, 0.45 um pore size, 50 mm - 100 ea

10406572 $148.45 PK
889-78006 ME25, white, 50 mm 0.45 um, 5 mm black grid, sterile, for Membrane-Butler - 400 ea

10407324 $500.30 PK
889-77904 ME25/21 ST, white, 50 mm 0.45 um, 3.1 mm black grid, sterile - 100 ea

10406872 $148.45 PK
889-77940 ME25/41 ST, green, 50 mm 0.45 um, 3.1 mm black grid, sterile - 100 ea

10409472 $148.45 PK
889-78003 ME25/21 STL, white, 50 mm 0.45 um, 3.1 mm black grid, sterile, for Membrane-Butler - 400 ea

10407314 $488.65 PK
889-78012 ME25/31 STL, black, 50 mm 0.45 um, 3.1 mm white grid, sterile, for Membrane-Butler - 400 ea

10407334 $488.65 PK
889-78018 ME25/41 STL, green, 50 mm 0.45 um, 3.1 mm black grid, sterile, for Membrane-Butler - 400 ea

10407372 $488.65 PK

Description Back to Top

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.

• Sterile options available for critical applications.
• 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

Image(s) are representative of the product group and not necessarily the individual product.

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