THE Codes and Standards listed here represent practices@ methods@ or standards published by the organizations indicated. They are useful guides for the practicing engineer in determining test methods@ ratings@ performance requirements@ and limits of HVACR equipment. Copies of the standards can be obtained from most of the organizations listed in the Publisher column@ from Global Engineering Documents at global.ihs.com@ or from CSSINFO at cssinfo.com. Addresses of the organizations are given at the end of the chapter. A comprehensive database with over 250@000 industry@ government@ and international standards is at www.nssn.org.