We manufacture and distribute fine chemicals and laboratory
products - with quality and delivery you can count on every time.

Corner
Whatman<sup>®</sup> Sterile Mixed Ester WME Membranes

Whatman® Sterile Mixed Ester WME Membranes

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
889-34657 WME Range, sterile, plain, 0.45 um pore size, 47 mm

7140-104 $156.55 PK
889-34675 WME Range, gridded, white/black grid 3.1 mm, sterile, without pad, 0.45 um pore size, 47 mm

Specifications

7141-154 $548.10 PK
889-34666 WME Range, gridded, white/black grid 3.1 mm, sterile, 0.45 um pore size, 47 mm

Specifications

7141-104 $102.85 PK
889-34669 WME Range, gridded, white/black grid 3.1 mm, sterile, without pad, 0.45 um pore size, 47 mm

Specifications

7141-114 $102.85 PK
889-34672 WME Range, gridded, white/black grid 3.1 mm, sterile, 0.45 um pore size, 47 mm

Specifications

7141-124 $195.00 PK
889-34678 WME Range, gridded, white/black grid 3.1 mm, autoclave pack, sterile, 0.45 um pore size, 47 mm

Specifications

7141-204 $127.95 PK
889-34714 WME Range, gridded, black/white grid 3.1 mm, sterile, 0.45 um pore size, 47 mm

Specifications

7153-104 $222.60 PK
889-34702Web Only Special!Details Whatman Mixed Ester (Type WME) Membranes, Circles, Plain, 0.45 um, Dia. (mm): 47; Mixed ester membranes, black - 100 pk

Specifications

7152-004 $131.77Details $206.00 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.

Shipping Back to Top

Shipping Costs
Click here for Shipping Costs
302814 has a rating of 4.9 stars based on 10 reviews.