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British & International Standards

BS 4857






Standard Number: BS 4857-2:1978
Title: Methods for testing and rating terminal reheat units for air distribution systems. Acoustic testing and rating
Abstract: Methods of testing and rating for static terminal attenuation; sound generation, upstream and downstream of the unit; radiation of sound from the casing.
Status: Confirmed, Current
Publication Date: 1978/08/31
Confirmed on: 2007/06/01
Cross References: BS 350, BS 661, BS 848:Part 2, BS 1042, BS 2475, BS 3638, BS 3763, BS 4196, BS 4197, BS 4857:Part 1, PD 5686, ISO/R 495, ISO/R 1680, ISO/R 1996, ISO 2204,
Supersedes Draft: 76/71260 DC
Descriptors: Air treatment devices, Air-conditioning equipment, Air-distribution systems, Heat exchangers, Acoustic testing, Ratings, Noise (environmental), Sound intensity, Performance testing, Acoustic measurement, Audiofrequencies, Sound sources, Graphical methods, Extrapolation, Air terminal devices, Air heaters



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