Track-etched for highly defined pore size and high pore densityTreated with PVP to render it hydrophilicLow extractables, minimizing sample contamination riskHigh chemical resistance and good thermal stability for a wide range of sample typesLow, consistent ash and low tare weightsSmooth flat surface for high particle visibilityCytiva Nuclepore track-etched hydrophilic membrane filters offer a highly defined pore size cutoff in the sub-micron range, enabling particle deformity measurement and capture of extremely small particles. Explore the full selection of Whatman Nuclepore membrane filters from Cytiva business, including hydrophobic, black, and AOX options. Hydrophilic membrane filters with sharply defined pores. Cytiva Whatman Nuclepore hydrophilic membrane filter range is manufactured from high-quality polycarbonate film, track-etched for high pore size precision. These sharply defined pores, combined with high flow rates and chemical and thermal resistance, make Nuclepore membranes suitable for a variety of samples and applications, including microscopy, cytology, parasitology, and certain air and oceanography analyses.