DI-HFAC-81981, DATA ITEM DESCRIPTION (DID): AIR MOVING DEVICE PRE-INSTALLATION AIRBORNE SOUND TESTING AND ACCEPTANCE CRITERIA REPORT (13-APR-2015)

DI-HFAC-81981, DATA ITEM DESCRIPTION (DID): AIR MOVING DEVICE PRE-INSTALLATION AIRBORNE SOUND TESTING AND ACCEPTANCE CRITERIA REPORT (13-APR-2015)., The Air Moving Device Pre-Installation Airborne Sound Testing and Acceptance Criteria Report describes the performance and results of pre-installation airborne sound tests for air moving devices, specifically a fan, a fan coil unit, a fan coil assemblies, and an air handling unit. a. This Data Item Description (DID) contains the format, content, and preparation instructions for that data generated in response to applicable tasks of MIL-STD-1474 and the contract statement of work to test the noise performance of an air moving device. b. The data reported by this DID may be used to support the analysis and design development described in DI-HFAC-81278, Airborne Noise Analysis and Control Design History Booklet.