The Board of Standards Review for theAmerican National Standards Institute(ANSI) has approved and recognized ARIStandards 580-2001, "Non-Condensable Gas purge Equipment For use With Low Pressure Centrifugal Liquid Chillers," and 1060-2001, "Rating Air-To-Air Heat Exchangers For Energy Recovery Ventilation Equipment," as American National Standards. ARI Standard 580-2001, from ARI, applies to non-condensable gas purge equipment for use with low-pressure centrifugal liquid chillers. ARI Standard 1060-2001, also from ARI, applies to factory-made air-to-air heat exchangers for use in energy recovery ventilation equipment.