Thursday, September 04, 2014 09:37:20
throughput and bubble point, defined as follows:
Flow Rate: Determines the volume of liquid or air that will flow through the filter at a fixed pressure and temperature. This is usually
displayed as ml/minute/cm^2.
Throughput: Describes the dirt handling capacity of a filter. Namely, how long the liquid will continue to flow through the membrane before
the membrane clogs. The lower the flow rate and throughput, the longer it takes the researcher to complete the analysis.
Bubble point: A test to determine the integrity and pore size of a filter. The differential pressure at which a steady stream of gas bubbles
is emitted from a wetted filter under specific test conditions. The bubble point test measures the largest pore. Bubble point is generally
determined using water or an alcohol (methanol or isopropynol) and is displayed as PSI.