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    I.S. EN 60645-2:1999

    Withdrawn A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

    AUDIOMETERS - PART 2: EQUIPMENT FOR SPEECH AUDIOMETRY

    Available format(s):  Hardcopy, PDF

    Withdrawn date:  13-05-2021

    Language(s):  English

    Published date:  01-01-1999

    Publisher:  National Standards Authority of Ireland

    For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
    Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

    Dates of withdrawal of national standards are available from NSAI.

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

    FOREWORD
    INTRODUCTION
    1 Scope and object
    2 Normative references
    3 Definitions
    4 General requirements
    5 Minimum requirements for specific types of
       audiometers
    6 Reference conditions for specification, testing and
       calibration of speech audiometers
    7 Signal level indicator
    8 Output level control for speech signals
    9 Output sound-pressure level and vibratory force level
    10 Frequency response
    11 Harmonic distortion
    12 Signal-to-noise ratio
    13 Masking sound
    14 Monitor earphone or loudspeaker
    15 Talkback system
    16 Interrupter switches
    17 Marking and instruction manual
    Annex A (informative) Correction figures for free-field
                           equivalent output for certain types of
                           commonly used earphones
    Annex ZA (normative) Normative references to international
                           publications with their corresponding
                           European publications

    Abstract - (Show below) - (Hide below)

    Defines requirements for audiometers or parts thereof designed to provide a means of presenting speech sounds to a subject in a standardized manner, for example for the measurement of speech recognition.

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

    Development Note For CENELEC adoptions of IEC publications, please check www.iec.ch to be sure that you have any corrigenda that may apply. (01/2017)
    Document Type Standard
    Publisher National Standards Authority of Ireland
    Status Withdrawn

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

    EN 60645-1:2017 Electroacoustics - Audiometric equipment - Part 1: Equipment for pure-tone and speech audiometry
    IEC 60373:1990 Mechanical coupler for measurements on bone vibrators
    ISO 266:1997 Acoustics — Preferred frequencies
    IEC 60645-1:2017 Electroacoustics - Audiometric equipment - Part 1: Equipment for pure-tone and speech audiometry
    IEC 60268-7:2010 Sound system equipment - Part 7: Headphones and earphones
    HD 590 : 200S1 MECHANICAL COUPLER FOR MEASUREMENTS ON BONE VIBRATORS
    IEC 60318:1970 An IEC artificial ear, of the wide band type, for the calibration of earphones used in audiometry
    IEC 60225:1966 Octave, half-octave and third-octave band filters intended for the analysis of sounds and vibrations
    EN 60651:1994/A2:2001 SOUND LEVEL METERS (IEC 60651:1979/A2:2000)
    IEC 60268-17:1990 Sound system equipment. Part 17: Standard volume indicators
    IEC 60651:1979+AMD1:1993+AMD2:2000 CSV Sound level meters
    HD 483.17 : 200S1 SOUND SYSTEM EQUIPMENT - STANDARD VOLUME INDICATORS
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