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  • ECMA 74 : 14ED 2017

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    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    MEASUREMENT OF AIRBORNE NOISE EMITTED BY INFORMATION TECHNOLOGY AND TELECOMMUNICATIONS EQUIPMENT

    Available format(s): 

    Superseded date:  04-02-2021

    Language(s): 

    Published date:  12-01-2013

    Publisher:  European Computer Manufacturers Association

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    Table of Contents - (Show below) - (Hide below)

    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 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

    Abstract - (Show below) - (Hide below)

    Describes procedures for measuring and reporting the noise emission of information technology and telecommunications equipment.

    General Product Information - (Show below) - (Hide below)

    Document Type Standard
    Publisher European Computer Manufacturers Association
    Status Superseded
    Superseded By

    Standards Referencing This Book - (Show below) - (Hide below)

    ISO 12001:1996 Acoustics Noise emitted by machinery and equipment Rules for the drafting and presentation of a noise test code
    ISO 10302-2:2011 Acoustics — Measurement of airborne noise emitted and structure-borne vibration induced by small air-moving devices — Part 2: Structure-borne vibration measurements
    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
    IEC 61947-1:2002 Electronic projection - Measurement and documentation of key performance criteria - Part 1: Fixed resolution projectors
    ISO 10996:1999 Photography Still-picture projectors Determination of noise emissions
    ISO 80000-8:2007 Quantities and units Part 8: Acoustics
    ISO/IEC 11160-1:1996 Information technology Office equipment Minimum information to be included in specification sheets Printers Part 1: Class 1 and Class 2 printers
    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
    IEC 61947-2:2001 Electronic projection - Measurement and documentation of key performance criteria - Part 2: Variable resolution projectors
    ISO 10302-1:2011 Acoustics — Measurement of airborne noise emitted and structure-borne vibration induced by small air-moving devices — Part 1: Airborne noise measurement
    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 7779:2010 Acoustics Measurement of airborne noise emitted by information technology and telecommunications equipment
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