BSENIS0 4869-2:2018 BSl Standards Publication Licensedcopy:UniversityofLiverpool,UniversityofLiverpool,Versionco Acoustics - Hearing protectors Part 2: Estimation of effective A-weighted sound pressure levels whenhearingprotectorsareworn(Is04869-2:2018) bsi. BSENISO4869-2:2018 BRITISH STANDARD Nationalforeword This British Standard is the UK implementation of ENIS0 4869-2:2018. It supersedes BSENIS04869-2:1995,which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee EH/1/1,Hearing. A list of organizations represented on this committee can be obtained on request to its secretary This publication does not purport to include all the necessary provisions of a contract. Users areresponsible for its correct application. The British Standards Institution 2018 Published by BSI Standards Limited 2018 ISBN9780580859335 ICS 13.340.20 Compliance witha British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 November 2018 Amendments/corrigendaissuedsincepublication Date Text affected EN ISO 4869-2 EUROPEANSTANDARD NORME EUROPEENNE EUROPAISCHE NORM Novemher2018 , University of Liverpool, Version correct as of 28/11/2018 ICS13.340.20 Supersedes ENIS04869-2:1995 English Version Acoustics - Hearing protectors - Part 2: Estimation of effective A-weighted sound pressure levels when hearing Acoustique - Protecteurs individuels contre Akustik - Gehorschitzer - Teil 2: Abschatzung le bruit-Partie 2: Estimation des niveaux derbeim Tragenvon Gehorschitzern wirksamen de pression acoustique pondéres A en cas A-bewerteten Schalldruckpegel (IS0 4869-2:2018) d'utilisation de protecteurs individuels contre le bruit (IS0 4869-2:2018) This European Standard was approved by CEN on 23 April 2018. CEN members are bound to complywith the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status ofa national standard without any alteration.Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre orto any CENmember. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centrehasthesame status asthe official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. cen EUROPEAN COMMITTEE FOR STANDARDIZATION COMITE EUROPEEN DE NORMALISATION EUROPAISCHES KOMITEE FUR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels @2018CEN All rights of exploitation in any form and by any means reserved Ref.No.EN ISO 4869-2:2018:E worldwide for CEN national Members