Cytiva 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.

Catalog Number	Mfr. No.	Diameter (Metric)	Pore Size	Material (Membrane)	Waterflow Rate
09-927-189	Cytiva 10400912	47 mm	0.8 μm	ME 27	2.8 sec./100mL/12.5cm^2
09-927-260	Cytiva 10400909	37 mm	0.8 μm	ME 27	2.8 sec./100mL/12.5cm^2
09-927-605	Cytiva 10400772	50 mm	3 μm	ME 29	1.2 s/100mL/12.5cm^2
09-927-182	Cytiva 10401512	47 mm	0.6 μm	ME 26	4.8 sec./100mL/12.5cm^2

Description

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

Specifications

• Material: Mixed Cellulose Ester
• Protein Binding Capacity: Medium
• Temperature (English) Operating: 266°F

• Autoclavable: Autoclavable
• Temperature (Metric) Operating: 130°C