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    I.S. EN ISO 9295:2015

    Current The latest, up-to-date edition.

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

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  01-01-2015

    Publisher:  National Standards Authority of Ireland

    For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
    Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

    Dates of withdrawal of national standards are available from NSAI.

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

    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

    Abstract - (Show below) - (Hide below)

    Defines 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.

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

    Development Note Supersedes I.S. EN 29295. (06/2015)
    Document Type Standard
    Publisher National Standards Authority of Ireland
    Status Current
    Supersedes

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

    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)
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