Air terminal units, air terminal devices, dampers and valves: Sound power level by sound intensity (NT ACOU 091)

  • Report #: NT ACOU 091
  • Approved: January 1995
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This NORDTEST method specifies the way in which the sound power level of air terminal units, high/low velocity/pressure assemblies, dampers and valves used in air diffusion and air distribution is to be determined using sound intensity.