Citation
(2008), "Aerospace permeability testing", Aircraft Engineering and Aerospace Technology, Vol. 80 No. 5. https://doi.org/10.1108/aeat.2008.12780ead.006
Publisher
:Emerald Group Publishing Limited
Copyright © 2008, Emerald Group Publishing Limited
Aerospace permeability testing
Article Type: Equipment and software From: Aircraft Engineering and Aerospace Technology: An International Journal, Volume 80, Issue 5
Seals, pipes, joints, membranes, filters, mastics, O rings, cables and sheaths are excellent at keeping liquids out. Sadly, many of the vapours commonly used in vehicles often pass straight through them. Electronics can deteriorate, components rust, products rot - in fact cars, planes and even rockets have failed, simply because many materials do not keep vapour in or out.
Versaperm Limited, a major company in measuring and testing vapour permeability, reports that it has launched a new way to measure this easily, quickly and accurately for a wide range of hydrocarbon-based (and other) gasses including petrol, diesel, hydraulic fluids, refrigerants and water vapour.
The new MK VI meter claims results that are as accurate as a few parts per hundred million for some gasses. The permeability of some materials can be obtained in as little as 30 min whereas conventional gravimetric testing takes several days for a single measurement.
The meter’s highly automated computerised control makes it easy to use, requiring at most a few minutes training, even to cope with several samples at a time. Sensitivities are high and naturally dependent on the specific vapour under test.
As well as instrument sales the company also offers a comprehensive permeability laboratory testing service.