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  • BS EN ISO 4871:2009

    Current The latest, up-to-date edition.

    Acoustics. Declaration and verification of noise emission values of machinery and equipment

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  31-05-2010

    Publisher:  British Standards Institution

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

    Foreword
    Introduction
    1 Scope
    2 Normative references
    3 Definitions
    4 Noise emission declarations
    5 Presentations of noise emission declarations
    6 Verification of noise emission declarations
    Annex A (informative) - Guidelines for declaration of
            the noise emission of machinery and equipment
    Annex B (informative) - Examples of noise emission
            declarations for machinery and equipment
    Annex C (informative) - Verification of the declared
            noise emission value for a batch of machines
    Annex D (informative) - Bibliography
    Annex ZA (informative) - Relationship between this European
             Standard and the Essential Requirements of EU
             Directive 2006/42/EC

    Abstract - (Show below) - (Hide below)

    Provides information on the declaration of noise emission values, describes acoustical and product information to be presented in technical documents for the purposes of noise emission declaration, and specifies a method for verifying the noise emission declaration.

    Scope - (Show below) - (Hide below)

    This International Standard

    • gives information on the declaration of noise emission values,

    • describes acoustical and product information to be presented in technical documents for the purposes of noise emission declaration, and

    • specifies a method for verifying the noise emission declaration.

    It is applicable to machinery and equipment.

    The values to be used for the purposes of noise emission declaration are either declared singlenumber noise emission values, Ld, or declared dualnumber noise emission values, L and K. L is a noise emission value determined directly from measurements and K is the uncertainty associated with those measurements. Ld is the sum of L and K and represents an upper limit which values from repeated measurements are unlikely to exceed at a given confidence level; Ld corresponds to the stated or labelled value, Lc, defined in ISO 7574-1.

    The two forms of noise declaration are alternative means of representing any or all of the A-weighted sound power level, LwA, the A-weighted emission sound pressure level at specified positions, LpA, and the C-weighted peak emission sound pressure level at specified positions, LpC,peak· The choice as to which of the two forms is used in a particular case depends upon the requirements to be fulfilled. This selection is made, and guidance on the values of K is given, in the appropriate noise test code.

    Guidelines for determining declared noise em1ss1on values are given in annex A.

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

    Committee EH/1/4
    Development Note Supersedes 92/53363 DC. (10/2005)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Supersedes

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

    ISO 7574-2:1985 Acoustics — Statistical methods for determining and verifying stated noise emission values of machinery and equipment — Part 2: Methods for stated values for individual machines
    ISO 11202:2010 Acoustics Noise emitted by machinery and equipment Determination of emission sound pressure levels at a work station and at other specified positions applying approximate environmental corrections
    ISO 11200:2014 Acoustics Noise emitted by machinery and equipment Guidelines for the use of basic standards for the determination of emission sound pressure levels at a work station and at other specified positions
    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 3743-2:1994 Acoustics Determination of sound power levels of noise sources using sound pressure Engineering methods for small, movable sources in reverberant fields Part 2: Methods for special reverberation test rooms
    ISO 7574-4:1985 Acoustics — Statistical methods for determining and verifying stated noise emission values of machinery and equipment — Part 4: Methods for stated values for batches of machines
    ISO 9614-1:1993 Acoustics — Determination of sound power levels of noise sources using sound intensity — Part 1: Measurement at discrete points
    IEC 60942:2003 Electroacoustics - Sound calibrators
    ISO 9296:2017 Acoustics — Declared noise emission values of information technology and telecommunications equipment
    ISO 3747:2010 Acoustics Determination of sound power levels and sound energy levels of noise sources using sound pressure Engineering/survey methods for use in situ in a reverberant environment
    ISO 3740:2000 Acoustics Determination of sound power levels of noise sources Guidelines for the use of basic standards
    ISO 9614-2:1996 Acoustics — Determination of sound power levels of noise sources using sound intensity — Part 2: Measurement by scanning
    ISO 7574-1:1985 Acoustics — Statistical methods for determining and verifying stated noise emission values of machinery and equipment — Part 1: General considerations and definitions
    ISO 3746:2010 Acoustics Determination of sound power levels and sound energy levels of noise sources using sound pressure Survey method using an enveloping measurement surface over a reflecting plane
    ISO 1996-1:2016 Acoustics Description, measurement and assessment of environmental noise Part 1: Basic quantities and assessment procedures
    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
    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 11204:2010 Acoustics Noise emitted by machinery and equipment Determination of emission sound pressure levels at a work station and at other specified positions applying accurate environmental corrections
    IEC 60651:1979+AMD1:1993+AMD2:2000 CSV Sound level meters
    IEC 60804:2000 Integrating-averaging sound level meters
    ISO 7779:2010 Acoustics Measurement of airborne noise emitted by information technology and telecommunications equipment
    ISO 3743-1:2010 Acoustics Determination of sound power levels and sound energy levels of noise sources using sound pressure Engineering methods for small movable sources in reverberant fields Part 1: Comparison method for a hard-walled test room
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