Historical
ANSI/ASHRAE Standard 193-2010 (R2014)
Method of Test for Determining the Airtightness of HVAC Equipment
This standard applies to the following: a. Equipment intended for installation in ducted systems, including furnaces, heat pumps, air conditioners, coil boxes, filter boxes, and associated components. b. Equipment that moves less than 3000 cfm (1400 L/s) of air.
American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. [ashrae]