Revision as of 12:35, 3 March 2009 by Admin(talk | contribs)(New page: ==ISA== 29.92" HG or 1013.2 millibars or 101.3kpa at 15°C. A column of air one square inch in cross-section, measured from sea level to the top of the atmosphere, would weigh approximatel...)
29.92" HG or 1013.2 millibars or 101.3kpa at 15°C.
A column of air one square inch in cross-section, measured from sea level to the top of the atmosphere, would weigh approximately 14.7lbs.[1]