It appeared in chapter 10 of the high velocity later high pressure construction standards and in chapter 8 of the balancing and adjustment of air distribution systems manualof 1967 vintage. Smacna published the hvac air duct leakage test manual in conjunction with the smacna hvac duct construction standards. 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.
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