ANSI/AHRI/ASHRAE ISO Standard 13256-1:1998 (RA 2012) Water Source heat pumps - testing and rating for performance - Part1: water-to-air and brine-to-air heat pumps

ANSI/AHRI/ASHRAE ISO Standard 13256-2:1998 (RA 2012) Water Source heat pumps - - testing and rating for performance - Part1: water-to-water and brine-to-water heat pumps