Nuclepore polycarbonate track-etched membranes are manufactured from high quality polycarbonate film and have sharply defined pore sizes, high flow rates and excellent chemical and thermal resistance. The membranes have a smooth flat surface and exhibit very low levels of extractables.

Features and Benefits

• Low protein binding and low extractables ensuring no sample contamination
• High chemical resistance and good thermal stability for a wide range of samples
• Low, consistent ash and tare weights
• Smooth flat surface for good visibility of particles

Typical Data
	Polycarbonate
Thickness	6–11 µm
Burst Strength	>10 psi
Weight (Tare)	0.6–1 mg/cm2
Specific Gravity Bulk Material	1.20 g/cm3
Heat Sealing Range	230ºC–275ºC
Maximum Service Temperature	140ºC
Flammability	Slow burn
Ash Weight	0.92 µg/cm2
Porosity	<15%
Rated Pore Size	0.05–12.0 µm
Rated Pore Density	1 x 105–6 x 108 pores/cm2
Surface Texture	Flat & smooth
Optical	Translucent
Refractive Index	1.584–1.625 (birefringent)
Hydrophobic	No
Fiber Releasing	No
Autoclavable	121ºC

Polyester Drain Discs - (Filter Supports)

For use with membrane hardware where extra support is needed for improved flow rate and throughput. The Polyester Drain Disc is binder-free and has a thickness of 100 µm. It provides a flat surface to eliminate filter tearing or rupturing. It is also used as a separator between membrane layers in serial stack filtration applications. This chemically inert support disc is available in a variety of diameters for use in a range of devices.