• UNI EN ISO 7235 : 2009

    Current The latest, up-to-date edition.

    ACOUSTICS - LABORATORY MEASUREMENT PROCEDURES FOR DUCTED SILENCERS AND AIR- TERMINAL UNITS - INSERTION LOSS, FLOW NOISE AND TOTAL PRESSURE LOSS

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    Published date:  14-10-2009

    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 SIMBOLI
    5 INSTALLAZIONI DI PROVA E REQUISITI PER LA STRUMENTAZIONE
    6 PROCEDIMENTI DI PROVA
    7 INFORMAZIONI DA RIPORTARE
    8 INFORMAZIONI DA RIPORTARE
    APPENDICE A (normativa) - TIPOLOGIA DEL DISPOSITIVO DI
      ECCITAZIONE DEL CAMPO SONORO E PROVE DI QUALIFICAZIONE
    APPENDICE B (normativa) - ELEMENTO DI TRASMISSIONE
    APPENDICE C (normativa) - PARETI DEL CANALE E PERDITA PER
      INSERZIONE LIMITE
    APPENDICE D (normativa) - CONVERSIONE DEI VALORI DI ATTENUAZIONE
      IN BANDA DI TERZO DI OTTAVA A VALORI DI ATTENUAZIONE DI BANDA
      DI OTTAVA
    APPENDICE E (normativa) - MISURAZIONI SU SILENZIATORI CON
      PANNELLI PARALLELI DI GRANDI DIMENSIONI
    APPENDICE F (normativa) - PROVA DELL'ATTENUAZIONE LONGITUDINALE
    APPENDICE G (informativa) - TERMINAZIONI ANECOICHE
    APPENDICE H (informativa) - ESEMPI DI DISPOSITIVI DI MISURAZIONE
    APPENDICE ZA (informativa) - RAPPORTO FRA LA PRESENTE NORMA
      EUROPEA E I REQUISITI ESSENZIALI DELLA DIRETTIVA UE 98/37/CE
    APPENDICE ZB (informativa) - RAPPORTO FRA LA PRESENTE NORMA
      EUROPEA E I REQUISITI ESSENZIALI DELLA DIRETTIVA UE 2006/42/CE
    BIBLIOGRAFIA

    Abstract - (Show below) - (Hide below)

    Applies to all types of silencer including silencers for ventilating and air-conditioning systems, air intake and exhaust of flue gases, and similar applications.

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

    Committee CT 2
    Document Type Standard
    Publisher Ente Nazionale Italiano di Unificazione (UNI)
    Status Current
    Supersedes

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

    ISO 5725-1:1994 Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions
    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
    EN 12238:2001 Ventilation for buildings - Air terminal devices - Aerodynamic testing and rating for mixed flow application
    IEC 60942:2003 Electroacoustics - Sound calibrators
    ISO 5725-3:1994 Accuracy (trueness and precision) of measurement methods and results — Part 3: Intermediate measures of the precision of a standard measurement method
    ISO 5725-6:1994 Accuracy (trueness and precision) of measurement methods and results — Part 6: Use in practice of accuracy values
    ISO 5725-4:1994 Accuracy (trueness and precision) of measurement methods and results Part 4: Basic methods for the determination of the trueness of a standard measurement method
    ISO 11820:1996 Acoustics — Measurements on silencers in situ
    BS 4718:1971 Methods of test for silencers for air distribution systems
    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 5135:1997 Acoustics Determination of sound power levels of noise from air-terminal devices, air-terminal units, dampers and valves by measurement in a reverberation room
    ISO 5167-1:2003 Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full Part 1: General principles and requirements
    ISO 9614-3:2002 Acoustics — Determination of sound power levels of noise sources using sound intensity — Part 3: Precision method for measurement by scanning
    EN 12239:2001 Ventilation for buildings - Air terminal devices - Aerodynamic testing and rating for displacement flow applications
    ISO 5725-2:1994 Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
    ISO 14163:1998 Acoustics — Guidelines for noise control by silencers
    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 5221:1984 Air distribution and air diffusion Rules to methods of measuring air flow rate in an air handling duct
    IEC 61260:1995 Electroacoustics - Octave-band and fractional-octave-band filters
    EN 12589:2001 Ventilation for buildings - Air terminal units - Aerodynamic testing and rating of constant and variable rate terminal units
    ISO 3966:2008 Measurement of fluid flow in closed conduits Velocity area method using Pitot static tubes
    ISO 5136:2003 Acoustics — Determination of sound power radiated into a duct by fans and other air-moving devices — In-duct method
    ISO 5725-5:1998 Accuracy (trueness and precision) of measurement methods and results — Part 5: Alternative methods for the determination of the precision of a standard measurement method
    IEC 60651:1979+AMD1:1993+AMD2:2000 CSV Sound level meters
    IEC 60804:2000 Integrating-averaging sound level meters
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