Free Air Space Testing Procedure: Difference between revisions
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Sadie Smith (talk | contribs) (New page: Most methods of determining Free Air Space (FAS) use a pycnometer. Pycnometers are simple devices that work according to Boyle's Law PV=nRT. A sample is placed in an airtight chamber (Samp...) |
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Revision as of 13:36, 10 January 2012
Most methods of determining Free Air Space (FAS) use a pycnometer. Pycnometers are simple devices that work according to Boyle's Law PV=nRT. A sample is placed in an airtight chamber (Sample Tank A) with a known volume. Then a known volume of gas at a known pressure (from Pressurized Tank B) is released into the sample chamber to equalize the pressure between the two tanks. Based on the change in pressure, the air-filled void space of the sample can be calculated.
