This American National Standard, ANSI/SMACNA 016-2012, covers revised leakage criteria and builds on the proven methods for testing ductwork for air leaks from the first edition. Contains updates to ...

BPI adds duct leakage testing certification October 30, 2014 Sometimes known as duct and envelope tightness, the institute says the certification is a way for HVAC sales technicians and HVAC ductwork ...