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The Isopore™ membrane is a polycarbonate, track-etched screen filter recommended for all analyses in which the sample is viewed on the surface of the membrane. Isopore™ membrane offers distinct advantages for the analysis of airborne contaminants and other particles using optical or electron microscopy. The Isopore™ membrane is composed of polycarbonate film, which has a smooth, glass-like surface for clearer sample observation. The unique manufacturing process of the membrane ensures a precise pore diameter and a consistent pore size for accurate separation of samples by size. Matched-weight filters are not usually required because of low, constant tar and ash weights.
Features & Benefits: •Membrane structure retains particles on the surface, simplifying counting and analysis •Isopore™ membranes do not stain, resulting in low background interference •Non-hygroscopic, allowing for rapid drying and reduced sample analysis time •Translucent material does not require clearing for transmitted light microscopy; also available in brown variety
Applications: Air Monitoring, Epifluorescent Microscopy, Chemotaxis Assays
Product Information
Filter Code
GTTP
Filter Color
White
Maximum Operating Temperature
140 °C (possible reduction in flow rates may occur after autoclaving)
Filter Type
Screen filter
Applications
Application
0.2 µm pore size, hydrophilic polycarbonate membrane, 90 mm diameter
Biological Information
Media
Isopore®
Wettability
Hydrophilic
Physicochemical Information
Refractive Index
1.6
Pore Size
0.22 µm
Air Flow Rate
0.007 L/min x cm²/psi
Bubble Point at 23 °C
≥5.2 bar, air with water
Gravimetric Extractables
< 1%
Porosity %
13.8%
Water Flow Rate
Avg. 16 mL/min x cm2 (typical results @ 10 psi)
3.36 mL/min x cm²/psi
Dimensions
Filter Surface
Plain
Thickness
25 µm
Filter Diameter (⌀)
90 mm
Materials Information
Chemistry
Polycarbonate (PC)
Packaging Information
Material Size
polycarbonate, Hydrophilic, 0.22 µm, 90 mm, white, plain, 30
