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  • 14/30297521 DC : 0

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    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    BS EN 16272-4 - RAILWAY APPLICATIONS - TRACK - NOISE BARRIERS AND RELATED DEVICES ACTING ON AIRBORNE SOUND PROPAGATION - TEST METHOD FOR DETERMINING THE ACOUSTIC PERFORMANCE - PART 4: INTRINSIC CHARACTERISTICS - IN SITU VALUES OF SOUND DIFFRACTION UNDER DIRECT SOUND FIELD CONDITIONS

    Available format(s):  Hardcopy, PDF

    Superseded date:  31-10-2016

    Language(s):  English

    Published date: 

    Publisher:  British Standards Institution

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

    Foreword
    Introduction
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Symbols and abbreviations
    5 Sound diffraction index difference measurements
    6 Measurement uncertainty
    7 Measuring procedure
    8 Test report
    Annex A (informative) - Indoor measurements for product
            qualification
    Annex B (informative) - Measurement uncertainty
    Bibliography

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

    Comment Closes On
    Committee RAE/2
    Document Type Draft
    Publisher British Standards Institution
    Status Superseded
    Superseded By

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

    EN 16272-3-2:2014 Railway applications - Track - Noise barriers and related devices acting on airborne sound propagation - Test method for determining the acoustic performance - Part 3-2: Normalized railway noise spectrum and single number ratings for direct field applications
    ISO 13472-1:2002 Acoustics Measurement of sound absorption properties of road surfaces in situ Part 1: Extended surface method
    ISO/IEC Guide 98:1993 Guide to the expression of uncertainty in measurement (GUM)
    IEC 60942:2003 Electroacoustics - Sound calibrators
    EN 16272-6:2014 Railway applications - Track - Noise barriers and related devices acting on airborne sound propagation - Test method for determining the acoustic performance - Part 6: Intrinsic characteristics - In situ values of airborne sound insulation under direct sound field conditions
    EN ISO 354:2003 Acoustics - Measurement of sound absorption in a reverberation room (ISO 354:2003)
    IEC 61260:1995 Electroacoustics - Octave-band and fractional-octave-band filters
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