Tests mandate a straight duct configuration upstream of the unit to eliminate turbulence. This creates an . Engineers must adjust these figures in real-world applications where bends or dampers sit directly behind the outlet. 2. Sound Rating Determination
It measures critical performance data such as: ashrae standard 702006 pdf updated
Standard 70 is a copyrighted document and must be purchased from authorized distributors. You cannot legally download a free PDF version from a random public website. Tests mandate a straight duct configuration upstream of
establishes uniform laboratory testing methods to evaluate the aerodynamic and acoustic performance of commercial building air distribution components. This critical building ventilation standard provides specific testing procedures for diffusers, grilles, registers, and slots. uniform velocity profile.
Clearly defines grilles, registers, slots, and diffusers.
: The standard specifies the minimum lengths of straight duct required upstream of the test device to ensure a fully developed, uniform velocity profile.