Filter Aid Permeability Test Method
January 1, 2011
Permeability is a measure of rate of liquid flowing through a porous medium or a particulate filter cake. It is an important
Stefan Bradham
Measurement of Porosity Using a Custom-made Pycnometer
January 1, 2011
Introduction Porosity, permeability, and pore size distribution are three closely related concepts important to filter design and filter performance. Porosity is a
Measurement of Filter Permeability Using Frazier Air Permeability Tester
January 1, 2011
Introduction Permeability is a measure of the ease of a fluid that passes through the filter medium. It is one of the
Beta Ratios Explained and Applied to Liquid Filter Selection
November 8, 2010
Liquid Filter Beta Ratios Absolute rated liquid filter selection is tied to the media micron rating, materials of construction, construction design, and
What is Slip-flow and How Does it Affect Filter?
August 1, 2010
Recent scientific interest in nanofibers have many people exploring their use in filter media. One of the advantages of nanofibers for gas
What is Electret?
April 1, 2010
Electret is a counter term of magnet. A magnet is a ferrous material that possesses a quasi-permanent internal and external magnetic field.
What Actually is a Membrane?
January 1, 2010
My dictionary answers that question with “any thin pliable sheet of material” – but the true answer is much more complicated than
Nano This and Nano That
January 1, 2010
Several terms, each with the prefix “nano-”, are now in use in the fields of filtration and its related separation processes, and
Foam Hydrocarbon Traps in Automotive Air Induction Systems
January 1, 2009
Air pollution from automotives presents a serious problem and needs to be controlled. It is widely accepted that, in urban settings, 45%
Surface Wettability Affects Filtration
January 1, 2006
Wettability is a property that exists on every surface and influences the behavior of a fluid surrounding the surface due to the
Precision Monofilament Woven Filtration Media
January 1, 2006
Precision woven monofilament filtration fabrics can be classified many ways and into several broad categories, usually by their micron rating, fractional void
Porous Metal Filter Media
January 1, 2006
Most industrial companies that process fluids – such as chemical processing, pharmaceuticals, oil refining, automotive and others- utilize some type of filtration