There is an error in the data file which comes with version 1.10.2 of udunits. Line 412, the conversion factor for Btu to Joules, is off by a factor of 1000 and should be: IT_Btu P 1.055056e3 joule # exact Of course there are also errors in the unix units conversion program too. Peter Halvorson Siemens Power Corp pjh@xxxxxxxxx
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