AHRI Announces Revision of Standard 880 to Include End Reflection Loss
Published Jun 2012
June 20, 2012
Contact: Sean Lynch, Communications Specialist
Direct: (703)600-0371
Arlington, Va. -- The Air-Conditioning, Heating, and Refrigeration Institute (AHRI) today announced the revision of AHRI Standard 880, Performance Rating of Air Terminals, to include end reflection loss (ERL) to better predict sound generated by air terminal units. End reflection is the sound energy that is reflected back into the duct during testing instead of entering the test reverberation room, and occurs due to the test setup. The revised standard is now being used in test procedures for the Variable Air Volume Terminals certification program.
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