British & International Standards
BS 4773 : Acoustic Testing
Air Distribution Systems

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Standard Number BS 4773:Part 2:1989, EN 25135:1991,ISO 5135-1984
Title Methods for testing and rating air terminal devices for air distribution systems. Acoustic testing
Abstract Testing in reverberation rooms of air terminal devices, high/low velocity/pressure assemblies, dampers and valves used in air diffusion and distribution systems.
Status Superseded, Withdrawn
Publication Date 29 September 1989
Withdrawn Date 15 March 1999
Cross References BS 4196:Part 0, BS 4196:Part 1, BS 4196:Part 2, BS 4773:Part 1, BS 4979, BS 6821, ISO 3258, ISO 5219
Replaced By BS EN ISO 5135:1999
Replaces BS 4773:Part 2:1976
International Relationships EN 25135:1991 Identical, ISO 5135:1984 Identical
Amended By WD/AMD6971
Supersedes Draft 81/54476 DC
Descriptors Air terminal devices, Air-distribution systems, Air-conditioning equipment, Acoustic testing, Testing conditions, Noise (environmental), Sound intensity, Air-conditioning systems, Dampers (air conditioning), Acoustic measurement
ICS 17.140.20
ICS 91.140.30


Noise Measurements

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