Description
Description
Cytiva’s sterile Whatman MicroPlus-21 cellulose nitrate membrane filters are for microbiological quality control. The STL version is compatible with Membrane-Butler and other membrane filter dispensers.
- All MicroPlus-21 membrane filters are white with a high-contrast black grid (3.1 mm)
- Designed specifically for microbiological QC
- High mechanical strength and flow rate
- Tested for bubble point, bacterial retention, flow rate, recovery rate, and sterility
- Individually packaged for convenience and sterility
- Type STL provided in dispenser boxes with 100 numbered membrane filters for easy removal and secure handling using Cytiva’s Membrane-Butler
High-quality membranes for microbiological quality control
In microbiological QC testing, liquid is first filtered through a membrane, allowing the microorganisms to collect on the surface. The filter is then incubated on a nutrient medium, and individual colonies are evaluated via a microbial contamination test.
Specifications:
- Application: For microbiological control
- Grid Color: White
- Grid Dimension: 3.1 mm
- Material: Cellulose Nitrate
- Pore Size: 0.45 µm
- Sterility: Sterile
- Diameter: 50 mm
- For Membrane Butler: No
- Color: Black






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