Skip to content
Please enter a keyword to search

  • ANSI S12.57 : 2011

    View superseded by
    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
    View superseded by

    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

    Available format(s):  Hardcopy, PDF

    Superseded date:  13-07-2019

    Language(s):  English

    Published date:  01-01-2011

    Publisher:  Acoustical Society of America

    Add To Cart

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

    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Test environment
    5 Instrumentation and measurement equipment
    6 Location, installation and operation of noise
       source under test
    7 Measurement procedure
    8 Calculation of sound power levels and sound
       energy levels
    9 Measurement uncertainty
    10 Information to be recorded
    11 Test report
    Annex A (normative) - Evaluation of the excess of sound
            pressure level at a given distance
    Annex B (informative) - Recommendations for the location
            of the reference sound source and the
            microphones, if only one position is used for
            the reference sound source
    Annex C (normative) - Sound power level and sound energy
            level under reference meteorological
            conditions
    Annex D (normative) - Calculation of A-weighted sound power
            levels and A-weighted sound energy
            levels from octave-band levels
    Annex E (informative) - Guidance on the development of
            information on measurement uncertainty
    Bibliography

    Abstract - (Show below) - (Hide below)

    Defines a method for determining the sound power level or sound energy level of a noise source by comparing measured sound pressure levels emitted by a noise source (machinery or equipment) mounted in situ in a reverberant environment, with those from a calibrated reference sound source.

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

    Committee S12
    Development Note Also numbered as ISO 3747. (09/2003)
    Document Type Standard
    Publisher Acoustical Society of America
    Status Superseded
    Superseded By
    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/TS 7849-2:2009 Acoustics — Determination of airborne sound power levels emitted by machinery using vibration measurement — Part 2: Engineering method including determination of the adequate radiation factor
    ISO 4871:1996 Acoustics — Declaration and verification of noise emission values of machinery and equipment
    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 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/TR 25417:2007 Acoustics Definitions of basic quantities and terms
    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 3740:2000 Acoustics Determination of sound power levels of noise sources Guidelines for the use of basic standards
    ISO 9613-1:1993 Acoustics Attenuation of sound during propagation outdoors Part 1: Calculation of the absorption of sound by the atmosphere
    ISO 14257:2001 Acoustics — Measurement and parametric description of spatial sound distribution curves in workrooms for evaluation of their acoustical performance
    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/TS 7849-1:2009 Acoustics — Determination of airborne sound power levels emitted by machinery using vibration measurement — Part 1: Survey method using a fixed radiation factor
    ISO 80000-8:2007 Quantities and units Part 8: Acoustics
    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 6926:2016 Acoustics Requirements for the performance and calibration of reference sound sources used for the determination of sound power levels
    ISO 9614-3:2002 Acoustics — Determination of sound power levels of noise sources using sound intensity — Part 3: Precision method for measurement by scanning
    ISO 7574-3:1985 Acoustics — Statistical methods for determining and verifying stated noise emission values of machinery and equipment — Part 3: Simple (transition) method for stated values for batches of machines
    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/IEC Guide 98-3:2008 Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)
    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
    View more information

    • Access your standards online with a subscription

      Features

      • Simple online access to standards, technical information and regulations
      • Critical updates of standards and customisable alerts and notifications
      • Multi - user online standards collection: secure, flexibile and cost effective