Name: EN ISO 9295 : 2015
Brand: CEN

ACOUSTICS - DETERMINATION OF HIGH-FREQUENCY SOUND POWER LEVELS EMITTED BY MACHINERY AND EQUIPMENT (ISO 9295:2015)

Published date

20-05-2015

Publisher

Comite Europeen de Normalisation

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Conformity requirements
5 Requirements for measurements in a
reverberation test room
6 Method using measured reverberation time
7 Method using calculated air absorption
8 Method using a reference sound source
9 Method using a free field over a reflecting plane
10 Calculation of sound power level under reference
meteorological conditions
11 Measurement uncertainty
12 Information to be recorded
13 Information to be reported
Annex A (normative) - Calculation of air absorption coefficient
Bibliography

ISO 9295:2015 specifies four methods for the determination of the sound power levels of high-frequency noise emitted by machinery and equipment in the frequency range covered by the octave band centred at 16 kHz, which includes frequencies between 11,2 kHz and 22,4 kHz.

Committee	CEN/TC 211
DevelopmentNote	Supersedes EN 29295. (06/2015)
DocumentType	Standard
PublisherName	Comite Europeen de Normalisation
Status	Current
Supersedes	EN 29295 : 1991

Standards	Relationship
ISO 9295:2015	Identical
NF EN ISO 9295 : 2015	Identical
NBN EN ISO 9295 : 2015	Identical
NEN EN ISO 9295 : 2015	Identical
NS EN ISO 9295 : 2015	Identical
I.S. EN ISO 9295:2015	Identical
PN EN ISO 9295 : 2015	Identical
SN EN ISO 9295:2015	Identical
UNI EN ISO 9295 : 2015	Identical
UNE-EN ISO 9295:2015	Identical
BS EN ISO 9295:2015	Identical
DIN EN ISO 9295:2015-09	Identical
DIN EN ISO 9295 E : 2015	Identical

ISO 3744:2010	Acoustics Determination of sound power levels and sound energy levels of noise sources using sound pressure Engineering methods for an essentially free field over a reflecting plane
ISO 9613-1:1993	Acoustics Attenuation of sound during propagation outdoors Part 1: Calculation of the absorption of sound by the atmosphere
ISO 6926:2016	Acoustics Requirements for the performance and calibration of reference sound sources used for the determination of sound power levels
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 3745:2012	Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure — Precision methods for anechoic rooms and hemi-anechoic rooms
ISO 7779:2010	Acoustics Measurement of airborne noise emitted by information technology and telecommunications equipment
ISO/IEC Guide 98-3:2008	Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)