Whatman Sterile MicroPlus-21 STL Membrane, white with 3.1 mm black grid for Membrane-Butler, 0.45 µm, 47 mm circle, 400/pk

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. 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.

Features and Benefits