Filtry membranowe celulozowe MicroPlus, sterylne
Sterylne filtry membranowe z azotanu celulozy MicroPlus-21 przeznaczone są dla mikrobiologicznej kontroli jakości. Dostępne są w wersji STL - dla podajnika filtrów membranowych Butler.
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 Membrane-Butler

We offer a range of Whatman™ cellulose nitrate membrane filters, including both sterile and non-sterile options in gridded and non-gridded formats.

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.

All Whatman™ brand membranes used for microbiological quality control are tested systematically in order to ensure the same high quality from batch to batch. Bacterial retention, bubble point, flow rate, recovery rate, and sterility are all tested.
Filtry membranowe celulozowe MicroPlus, sterylne
Application For microbiological control 
Grid Color White 
Grid Dimension 3.1 mm
Material Cellulose Nitrate 
Pore Size 0.45 µm
Sterility Sterile 
Product Product Name For membrane butler Diameter Color
10407112 Sterile MicroPlus-21 STL Membrane; white with 3.1 mm black grid for Membrane-Butler; 0.45 µm; 47 mm circle (400 pcs) Yes 47 mm White
10407114 Sterile MicroPlus-21 STL Membrane; white with 3.1 mm black grid for Membrane-Butler; 0.45 µm; 50 mm circle (400 pcs) Yes 50 mm White
10407132 Sterile MicroPlus-31 STL Membrane; black with 3.1 mm white grid for Membrane-Butler; 0.45 µm; 47 mm circle (400 pcs) Yes 47 mm Black
10407134 Sterile MicroPlus-31 STL Membrane; black with 3.1 mm white grid for Membrane-Butler; 0.45 µm; 50 mm circle (400 pcs) Yes 50 mm Black
10407170 Sterile MicroPlus-21 STL Membrane; green with 3.1 mm black grid for Membrane-Butler; 0.45 µm; 47 mm circle (400 pcs) Yes 47 mm Green
10407172 Sterile MicroPlus-21 STL Membrane; green with 3.1 mm black grid for Membrane-Butler; 0.45 µm; 50 mm circle (400 pcs) Yes 50 mm Green
10407713 Sterile MicroPlus-21 STL Membrane; white with 3.1 mm black grid for Membrane-Butler; 0.45 µm; 47 mm circle (100 pcs) No 47 mm White
10407714 Sterile MicroPlus-21 STL Membrane; white with 3.1 mm black grid for Membrane-Butler; 0.45 µm; 50 mm circle (100 pcs) No 50 mm White
10407734 Sterile MicroPlus-21 STL Membrane; black with 3.1 mm white grid for Membrane-Butler; 0.45 µm; 50 mm circle (100 pcs) No 50 mm Black