Good luck finding ASHREA fundamentals for free. I have a copy of it, but I am not parting with it. :-( There are a number of psychometric routines available as shareware, people have been doing psychrometrics with computers since most of us were children. Any decent sized library would have a copy, and the math is not that hard. Copy the relevant pages, figure out the formulas, and write a spreadsheet or a visual basic routine that does what you need! Another method might be to call around to Mechanical engineering firms in your area, tell them you are a student and want an outdated copy. Often these firms will buy a new copy every 4 years. The physics of air, however, hasn't changed for as long as I can remember. Hopefully you are a student, and not just a cheapskate like myself. -- Lawrence Lile P.S. In case there are those who do not know what psychrometrics are, it is the science of measuring psychic ability in psychotic patients. (not) I just had to say that, it is actually the science of measuring heat, moisture, and heat flow through air. Eron Sent by: pic microcontroller discussion list 01/18/2004 05:38 PM Please respond to pic microcontroller discussion list To: PICLIST@MITVMA.MIT.EDU cc: Subject: [OT:] ASHRAE Downloads Hello everybody, I'm looking for a web page or FTP server where I can find ASHRAE publications for free download. Anybody knows a good one? I'm trying to find specificaly: * ASHRAE Fundamentals Handbook 2001 * Psychrometric Analysis Thanks in advance, -- []s E-ron. ___________________________ Getting Better All The Time -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics