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17/30359986 DC : 0

NA
NA

Status of Standard is Unknown

BS EN ISO 7779 - ACOUSTICS - MEASUREMENT OF AIRBORNE NOISE EMITTED BY INFORMATION TECHNOLOGY AND TELECOMMUNICATIONS EQUIPMENT
Available format(s)

Hardcopy , PDF

Language(s)

English

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Conformity requirements
5 Installation and operating conditions
6 Method for determination of sound power
   levels of equipment in reverberation test rooms
7 Method for determination of sound power
   levels of equipment under essentially
   free-field conditions over a reflecting plane
8 Method for determination of emission sound
   pressure levels at defined operator
   and bystander positions
9 Measurement uncertainty
10 Information to be recorded and reported
Annex A (normative) - Test accessories
Annex B (normative) - Measurement surfaces
Annex C (normative) - Installation and operating
        conditions for specific equipment categories
Annex D (informative) - Identification and evaluation
        of prominent discrete tones
Annex E (informative) - Detection of impulsive noise
Bibliography

BS EN ISO 7779.

Committee
EH/1/4
DocumentType
Draft
Pages
76
PublisherName
British Standards Institution
Status
NA

IEC 61183:1994 Electroacoustics - Random-incidence and diffuse-field calibration of sound level meters
ISO 12001:1996 Acoustics Noise emitted by machinery and equipment Rules for the drafting and presentation of a noise test code
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 389-7:2005 Acoustics Reference zero for the calibration of audiometric equipment Part 7: Reference threshold of hearing under free-field and diffuse-field listening conditions
ISO/TR 25417:2007 Acoustics Definitions of basic quantities and terms
IEC 60942:2003 Electroacoustics - Sound calibrators
ISO 266:1997 Acoustics — Preferred frequencies
ISO 9296:2017 Acoustics — Declared noise emission values of information technology and telecommunications equipment
ECMA 108 : 6ED 2016 DETERMINATION OF HIGH-FREQUENCY SOUND POWER LEVELS EMITTED BY INFORMATION TECHNOLOGY AND TELECOMMUNICATIONS EQUIPMENT
ISO 28961:2012 Acoustics — Statistical distribution of hearing thresholds of otologically normal persons in the age range from 18 years to 25 years under free-field listening conditions
ISO 80000-8:2007 Quantities and units Part 8: Acoustics
ISO 9295:2015 Acoustics Determination of high-frequency sound power levels emitted by machinery and equipment
ISO 6926:2016 Acoustics Requirements for the performance and calibration of reference sound sources used for the determination of sound power levels
ISO 11203:1995 Acoustics — Noise emitted by machinery and equipment — Determination of emission sound pressure levels at a work station and at other specified positions from the sound power level
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
IEC 61260:1995 Electroacoustics - Octave-band and fractional-octave-band filters
ECMA 109 : 7ED 2016 DECLARED NOISE EMISSION VALUES OF INFORMATION TECHNOLOGY AND TELECOMMUNICATIONS EQUIPMENT
ECMA/TR 27 : 2ED 95 METHOD FOR THE PREDICTION OF INSTALLATION NOISE LEVELS
ISO 11201:2010 Acoustics Noise emitted by machinery and equipment Determination of emission sound pressure levels at a work station and at other specified positions in an essentially free field over a reflecting plane with negligible environmental corrections
ISO/IEC Guide 98-3:2008 Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)

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