Whatman Sterile MicroPlus-21 STL Membrane, green with 3.1 mm black grid for Membrane-Butler, 0.45 µm, 50 mm circle, 400/pk-CYTIVA 10407172

All MicroPlus21 membrane filters are white with a highcontrast 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 MembraneButler Cytiva's sterile Whatman MicroPlus21 cellulose nitrate membrane filters are for microbiological quality control. The STL version is compatible with MembraneButler and other membrane filter dispensers. In these products the microorganism counts are very low and are therefore determined quantitatively via enrichment methods. Production processes are monitored continuously at their critical points (tanks, pipelines, filling units) as are the finished products. The membrane filtration method is the optimal analytical method for doing this.