The 2005 ASHRAE Handbook--Fundamentals covers basic principles and data used in the HVAC&R industry. Covering general engineering information, basic materials, climate data, load and energy calculations, duct and pipe design, and sustainability, plus reference tables for abbreviations and symbols, I-P to SI conversions, and physical properties of materials. An accompanying CD-ROM (free with the book--also sold separately) contains all the volume's chapters in both I-P and SI units.