25 mm 0.22 µm polycarbonate membrane filters (100 pieces)

Alpha Laboratories' polycarbonate membrane filters are manufactured from high-quality polycarbonate film using track-etch technology. They have a smooth, flat surface that provides a uniform capillary pore structure and narrow pore size distribution, allowing for high particle retention and visibility on the membrane surface. The high flow rates and excellent thermal and chemical resistance of track-etched polycarbonate membrane filters make them a suitable choice for the precise detection and fractionation of particles in many corrosive fluids. They exhibit a very low level of extractables, making them suitable for a variety of other applications, including biological cell analysis, water microbiology, environmental analysis, fluid clarification, cytology, parasitology, bioassays, and epifluorescence microscopy. These polycarbonate membrane filters are supplied as 25 mm diameter discs, with a pore size of 0.22 µm and a membrane thickness of 0.25 mm. The water flow rate is 10 ml/min/cm², and the air flow rate is 3 l/min/cm². They are equivalent to Whatman™ Nucleopore™ track-etched polycarbonate membrane filters. Alpha Laboratories' polycarbonate membrane filters are plain, white, and supplied unsterile in a box of 100 discs.