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EN 24869-1 : 1992

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

ACOUSTICS - HEARING PROTECTORS - SUBJECTIVE METHOD FOR THE MEASUREMENT OF SOUND ATTENUATION
Superseded date

17-03-2022

Published date

23-10-1992

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)

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.

Committee
CEN/TC 211
DevelopmentNote
Will be implemented as an amendment to BS 5108: Part 1: 1991.
DocumentType
Standard
PublisherName
Comite Europeen de Normalisation
Status
Superseded

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 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 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

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