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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
HTTP
Filter Color
White
Maximum Operating Temperature
140 °C (possible reduction in flow rates may occur after autoclaving)
Filter Type
Screen filter
Quality Level
MQ400
Applications
Application
0.4 µm pore size, hydrophilic polycarbonate membrane, 142 mm diameter
Biological Information
Media
Isopore®
Wettability
Hydrophilic
Physicochemical Information
Refractive Index
1.6
Pore Size
0.4 µm
Air Flow Rate
≥7 L/min @ 10 psi
Bubble Point at 23 °C
≥1.5 bar (22 psi)
Gravimetric Extractables
< 1%
Porosity %
10%-20%
Water Flow Rate
≥50 mL/min/cm² (typical results @ 10 psi)
18 mL/min x cm²/psi
Dimensions
Filter Surface
Plain
Thickness
10 µm
Filter Diameter (⌀)
142 mm
Materials Information
Chemistry
Polycarbonate (PC)
Packaging Information
Material Size
polycarbonate, Hydrophilic, 0.4 µm, 142 mm, white, plain, 50
