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  • UNI EN ISO 3744 : 2010

    Current The latest, up-to-date edition.

    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

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    Published date:  25-11-2010

    Publisher:  Ente Nazionale Italiano di Unificazione (UNI)

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

    PREMESSA
    INTRODUZIONE
    1 SCOPO E CAMPO DI APPLICAZIONE
    2 RIFERIMENTI NORMATIVI
    3 TERMINI E DEFINIZIONI
    4 AMBIENTE DI PROVA
    5 STRUMENTAZIONE
    6 DEFINIZIONE, POSIZIONAMENTO, INSTALLAZIONE E FUNZIONAMENTO
       DELLA SORGENTE DI RUMORE SOTTOPOSTA A PROVA
    7 PARALLELEPIPEDO DI RIFERIMENTO E SUPERFICIE DI MISURAZIONE
    8 DETERMINAZIONE DEI LIVELLI DI POTENZA SONORA E DEI LIVELLI
       DI ENERGIA SONORA
    9 INCERTEZZA DI MISURAZIONE
    10 INFORMAZIONI DA REGISTRARE
    11 RAPPORTO DI PROVA
    APPENDICE A (normativa) - PROCEDIMENTI DI QUALIFICAZIONE
                DELL'AMBIENTE ACUSTICO
    APPENDICE B (normativa) - POSTAZIONI MICROFONICHE
                SUPPLEMENTARI SULLA SUPERFICIE DI MISURAZIONE
                EMISFERICA
    APPENDICE C (normativa) - BATTERIE MICROFONICHE SU UNA
                SUPERFICIE DI MISURAZIONE DI UN PARALLELEPIPEDO
    APPENDICE D (normativa) - BATTERIE MICROFONICHE SU UNA
                SUPERFICIE DI MISURAZIONE CILINDRICA
    APPENDICE E (normativa) - CALCOLO DI LIVELLI DI POTENZA
                SONORA PONDERATI A E LIVELLI DI ENERGIA SONORA
                PONDERATI A DAI LIVELLI DI BANDA DI FREQUENZA
    APPENDICE F (normativa) - UNA BATTERIA MICROFONICA ALTERNATIVA
                SU UNA SUPERFICIE DI MISURAZIONE SEMISFERICA PER
                LE MISURAZIONI DIRETTE DEI LIVELLI DI PRESSIONE
                SONORA PONDERATI A
    APPENDICE G (normativa) - LIVELLI DI POTENZA SONORA E LIVELLI
                DI ENERGIA SONORA IN CONDIZIONI METEOROLOGICHE DI
                RIFERIMENTO
    APPENDICE H (normativa) - LINEE GUIDA PER LO SVILUPPO DELLE
                INFORMAZIONI SULL'INCERTEZZA DI MISURAZIONE
    APPENDICE ZA (normativa) - RAPPORTO TRA LA PRESENTE NORMA
                 EUROPEA E I REQUISITI ESSENZIALI DELLA DIRETTIVA
                 UE 2006/42/CE
    BIBLIOGRAFIA

    Abstract - (Show below) - (Hide below)

    Describes methods for determining the sound power level or sound energy level of a noise source from sound pressure levels measured on a surface enveloping the noise source (machinery or equipment) in an environment that approximates to an acoustic free field near one or more reflecting planes.

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

    Committee CT 2
    Development Note Bilingual (Italian + English) version issued in JULY 2011. (08/2011)
    Document Type Standard
    Publisher Ente Nazionale Italiano di Unificazione (UNI)
    Status Current
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    UNI 11464 : 2012 SAFETY OF MACHINERY - TRUCK MIXERS - SAFETY REQUIREMENT
    UNI 11023 : 2011 SELF LOADING MOBILE MIXERS - SAFETY REQUIREMENTS
    UNI TR 11326 : 2009 Acoustics - Evaluation of the uncertainty of measurements and calculations in acoustics - Parte 1: General concepts

    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 13472-1:2002 Acoustics Measurement of sound absorption properties of road surfaces in situ Part 1: Extended surface method
    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 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 3382-2:2008 Acoustics Measurement of room acoustic parameters Part 2: Reverberation time in ordinary 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 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 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 10534-2:1998 Acoustics — Determination of sound absorption coefficient and impedance in impedance tubes — Part 2: Transfer-function method
    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 10534-1:1996 Acoustics Determination of sound absorption coefficient and impedance in impedance tubes Part 1: Method using standing wave ratio
    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/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
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