Name: BS 848-2.2(2004) : 2004
Brand: BSI

INDUSTRIAL FANS - DETERMINATION OF FAN SOUND POWER LEVELS UNDER STANDARDIZED LABORATORY CONDITIONS - PART 2: REVERBERANT ROOM METHOD

Published date

23-11-2012

Publisher

British Standards Institution

Foreword
Introduction
1 Scope
2 Normative references
3 Limitations on use
4 Field of application
5 Instrumentation
6 Test method
7 Acoustic environment
8 Test set-up and ducting
9 Observations
10 Calculations
Annex A (normative) Room qualification for sound sources with
broad band sound
Annex B (informative) Room qualification for sound sources
with pure tones/narrow-band sound
Annex C (informative) Total fan sound testing with attached ducts
Annex D (normative) Transmission element
Bibliography

Provides a detailed description of reverberant room methods for the determination of fan sound power levels.

Committee	MCE/17
DevelopmentNote	Also numbered as BS ISO 13347-2. Together with BS ISO 13347-1, BS ISO 13347-3, BS ISO 13347-4, BS 848-2.1(2004), BS 848-2.3(2004) & BS 848-2.4(2004), it supersedes BS 848-2(1985). (08/2004) Supersedes 02/705654 DC. (09/2004) Reviewed and confirmed by BSI, September 2015. (09/2015)
DocumentType	Standard
PublisherName	British Standards Institution
Status	Current
Supersedes	02/705654 DC : DRAFT MAY 2002 BS 848-2:1985

Standards	Relationship
ISO 13347-2:2004	Identical

ISO 10302:1996	Acoustics Method for the measurement of airborne noise emitted by small air-moving devices
ISO 3742:1988	Acoustics — Determination of sound power levels of noise sources — Precision methods for discrete-frequency and narrow-band sources in reverberation rooms
ISO 3743-2:1994	Acoustics Determination of sound power levels of noise sources using sound pressure Engineering methods for small, movable sources in reverberant fields Part 2: Methods for special reverberation test rooms
ISO 266:1997	Acoustics — Preferred frequencies
ISO 3740:2000	Acoustics Determination of sound power levels of noise sources Guidelines for the use of basic standards
IEC 60704-2-7:1997	Household and similar electrical appliances - Test code for the determination of airborne acoustical noise - Part 2-7: Particular requirements for fans
ISO 13350:2015	Fans Performance testing of jet fans
ISO 5801:2017	Fans — Performance testing using standardized airways
ISO 3741:2010	Acoustics Determination of sound power levels and sound energy levels of noise sources using sound pressure Precision methods for reverberation test rooms
ISO 13347-1:2004	Industrial fans — Determination of fan sound power levels under standardized laboratory conditions — Part 1: General overview
ISO 7235:2003	Acoustics — Laboratory measurement procedures for ducted silencers and air-terminal units — Insertion loss, flow noise and total pressure loss
ISO 5136:2003	Acoustics — Determination of sound power radiated into a duct by fans and other air-moving devices — In-duct method
ISO 3743-1:2010	Acoustics Determination of sound power levels and sound energy levels of noise sources using sound pressure Engineering methods for small movable sources in reverberant fields Part 1: Comparison method for a hard-walled test room
ISO 13349:2010	Fans — Vocabulary and definitions of categories