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  • EN 24869-1 : 1992

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    ACOUSTICS - HEARING PROTECTORS - SUBJECTIVE METHOD FOR THE MEASUREMENT OF SOUND ATTENUATION

    Available format(s): 

    Superseded date:  17-03-2022

    Language(s): 

    Published date:  23-10-1992

    Publisher:  Comite Europeen de Normalisation

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

    Committees responsible
    National foreword
    Method
    1. Scope
    2. Normative references
    3. Definitions
    4. Measurement of the sound attenuation of hearing
         protectors
    Annexes
    A. Uncertainty of sound attenuation measurements
    B. Bibliography
    Tables
    1. Allowable field variation for different microphones
    2. Maximum permissible background sound pressure level
    3. Minimum and maximum sound pressure levels for test
         signals
    A.1 Repeatability and reproducibility of sound
         attenuation measurements on ear-muffs at a
         probability level of 95% (according to ISO 5725)
    A.2 Repeatability and reproducibility of sound
         attenuation measurements on ear-plugs at a
         probability level of 95% (according to ISO 5725)

    Abstract - (Show below) - (Hide below)

    Describes a method for measuring sound attenuation of hearing protectors at the threshold of hearing, to yield values close to the maximum attenuation which are not normally attained under field conditions. This has been adopted because the attenuation values can then be consistently reproduced. This method provides data which are collected at low sound pressure levels but which are also representative of attenuation values at higher levels. An exception is amplitude-sensitive hearing protectors for sound pressure levels above the point at which their level-dependent characteristics become effective. At this level the method specified is inapplicable.

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

    Committee CEN/TC 211
    Development Note Will be implemented as an amendment to BS 5108: Part 1: 1991.
    Document Type Standard
    Publisher Comite Europeen de Normalisation
    Status Superseded

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

    PREN 458 : DRAFT 2013 HEARING PROTECTORS - RECOMMENDATIONS FOR SELECTION, USE, CARE AND MAINTENANCE - GUIDANCE DOCUMENT
    01/560954 DC : DRAFT FEB 2001 BS EN 458 - HEARING PROTECTORS - RECOMMENDATIONS FOR SELECTION, USE, CARE AND MAINTENANCE - GUIDANCE DOCUMENT
    DIN EN 352-1 E : 2003 HEARING PROTECTORS - GENERAL REQUIREMENTS - PART 1: EAR-MUFFS
    BS EN 352-3:2002 Hearing protectors. Safety requirements and testing Ear-muffs attached to an industrial safety helmet
    DIN EN 352-3:2003-04 Hearing protectors - General requirements - Part 3: Ear-muffs attached to an industrial safety helmet
    DIN EN 352-2:2003-04 Hearing protectors - General requirements - Part 2: Ear-plugs
    CEI EN 60645-1 : 2016 ELECTROACOUSTICS - AUDIOMETRIC EQUIPMENT - PART 1: EQUIPMENT FOR PURE-TONE AUDIOMETRY
    EN 13819-2:2002 Hearing protectors - Testing - Part 2: Acoustic test methods
    EN 352-2:2002 Hearing protectors - General requirements - Part 2: Ear-plugs
    I.S. EN 458:2016 HEARING PROTECTORS - RECOMMENDATIONS FOR SELECTION, USE, CARE AND MAINTENANCE - GUIDANCE DOCUMENT
    I.S. EN 13819-2:2002 HEARING PROTECTORS - TESTING - PART 2: ACOUSTIC TEST METHODS
    EN 352-1:2002 Hearing protectors - General requirements - Part 1: Ear-Muffs
    I.S. EN 352-3:2002 HEARING PROTECTORS - SAFETY REQUIREMENTS AND TESTING - EAR-MUFFS ATTACHED TO AN INDUSTRIAL SAFETY HELMET
    EN 352-3:2002 Hearing protectors - General requirements - Part 3: Ear-muffs attached to an industrial safety helmet
    I.S. EN 352-1:2002 HEARING PROTECTORS - SAFETY REQUIREMENTS AND TESTING - EAR MUFFS
    I.S. EN ISO 4869-4:2000 ACOUSTICS - HEARING PROTECTORS - PART 4 - MEASUREMENT OF EFFECTIVE SOUND PRESSURE LEVELS FOR LEVEL-DEPENDENT SOUND-RESTORATION EAR-MUFFS
    I.S. EN 352-2:2002 HEARING PROTECTORS - SAFETY REQUIREMENTS AND TESTING - PART 2: EARPLUGS
    BS EN 60268-7:2011 Sound system equipment Headphones and earphones
    I.S. EN 60645-1:2017 ELECTROACOUSTICS - AUDIOMETRIC EQUIPMENT - PART 1: EQUIPMENT FOR PURE-TONE AND SPEECH AUDIOMETRY
    DIN EN 458:2016-07 HEARING PROTECTORS - RECOMMENDATIONS FOR SELECTION, USE, CARE AND MAINTENANCE - GUIDANCE DOCUMENT
    BS EN 458:2016 HEARING PROTECTORS - RECOMMENDATIONS FOR SELECTION, USE, CARE AND MAINTENANCE - GUIDANCE DOCUMENT
    EN 60268-7:2011 Sound system equipment - Part 7: Headphones and earphones
    CEI EN 60268-7 : 2012 SOUND SYSTEM EQUIPMENT - PART 7: HEADPHONES AND EARPHONES
    BS EN 60645-1:2017 Electroacoustics. Audiometric equipment Equipment for pure-tone and speech audiometry
    ISO 4869-2:1994 Acoustics Hearing protectors Part 2: Estimation of effective A-weighted sound pressure levels when hearing protectors are worn
    16/30348450 DC : 0 BS EN 13819-3 - HEARING PROTECTORS - TESTING - PART 3: SUPPLEMENTARY ACOUSTIC TEST METHOD
    EN ISO 4869-2:1995/AC:2007 ACOUSTICS - HEARING PROTECTORS - PART 2: ESTIMATION OF EFFECTIVE A-WEIGHTED SOUND PRESSURE LEVELS WHEN HEARING PROTECTORS ARE WORN
    I.S. EN 60268-7:2011 SOUND SYSTEM EQUIPMENT - PART 7: HEADPHONES AND EARPHONES
    UNE-EN 60645-1:2015 Electroacoustics - Audiometric equipment - Part 1: Equipment for pure-tone audiometry
    DIN EN 352-2 E : 2003 HEARING PROTECTORS - GENERAL REQUIREMENTS - PART 2: EAR-PLUGS
    BS EN 13819-2:2002 HEARING PROTECTORS - TESTING - PART 2: ACOUSTIC TEST METHODS
    BS EN 352-1:2002 Hearing protectors. Safety requirements and testing Ear-muffs
    EN ISO 4869-4:2000 ACOUSTICS - HEARING PROTECTORS - PART 4 - MEASUREMENT OF EFFECTIVE SOUND PRESSURE LEVELS FOR LEVEL-DEPENDENT SOUND-RESTORATION EAR-MUFFS
    EN 458:2016 Hearing protectors - Recommendations for selection, use, care and maintenance - Guidance document
    13/30278698 DC : 0 BS EN 458 - HEARING PROTECTORS - RECOMMENDATIONS FOR SELECTION, USE, CARE AND MAINTENANCE - GUIDANCE DOCUMENT
    BS EN ISO 4869-2:1995 ACOUSTICS - HEARING PROTECTORS - PART 2: ESTIMATION OF EFFECTIVE A-WEIGHTED SOUND PRESSURE LEVELS WHEN HEARING PROTECTORS ARE WORN
    I.S. EN ISO 4869-2:1996 ACOUSTICS - HEARING PROTECTORS - PART 2: ESTIMATION OF EFFECTIVE A-WEIGHTED SOUND PRESSURE LEVELS WHEN HEARING PROTECTORS ARE WORN
    DIN EN 352-3 E : 2003 HEARING PROTECTORS - GENERAL REQUIREMENTS - PART 3: EAR-MUFFS ATTACHED TO AN INDUSTRIAL SAFETY HELMET
    BS EN 352-2:2002 Hearing protectors. Safety requirements and testing Ear-plugs
    DIN EN 352-1:2003-04 Hearing protectors - General requirements - Part 1: Ear-Muffs
    EN 60645-1:2017 Electroacoustics - Audiometric equipment - Part 1: Equipment for pure-tone and speech audiometry
    View more information

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