SIST EN 13819-2:2003
(Main)Hearing protectors - Testing - Part 2: Acoustic test methods
Hearing protectors - Testing - Part 2: Acoustic test methods
This European Standard prEN 13819 describes methods of test for hearing protectors. The purpose of these tests is to enable assessment of the performance of the hearing protector as specified in the appropriate product standard. This Part 2 of the prEN 13819 specifies acoustic test methods.
Gehörschützer - Prüfung - Teil 2: Akustische Prüfverfahren
Diese Europäische Norm EN 13819 legt akustische Prüfverfahren für Gehörschützer fest. Zweck dieser Prüfungen ist, die Beurteilung der Leistungsfähigkeit des Gehörschützers, wie sie in der jeweiligen Produktnorm festgelegt ist, zu ermöglichen.
Protecteurs individuels contre le bruit - Essais - Partie 2: Méthodes d'essai acoustique
La présente Norme européenne EN 13819-2 décrit des méthodes d'essai acoustique des protecteurs contre le bruit. L'objectif de ces essais est de permettre l'évaluation des performances du protecteur contre le bruit comme spécifié dans la norme de produit appropriée.
Varovala sluha - Preskušanje - 2. del: Akustične preskusne metode
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Hearing protectors - Testing - Part 2: Acoustic test methodsProtecteurs individuels contre le bruit - Essais - Partie 2: Méthodes d'essai acoustiqueGehörschützer - Prüfung - Teil 2: Akustische Prüfverfahren13.340.20Varovalna oprema za glavoHead protective equipmentICS:SIST EN 13819-2:2003enTa slovenski standard je istoveten z:EN 13819-2:200201-april-2003SIST EN 13819-2:2003SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13819-2November 2002ICS 13.340.20English versionHearing protectors - Testing - Part 2: Acoustic test methodsProtecteurs individuels contre le bruit - Essais - Partie 2:Méthodes d'essai acoustiqueGehörschützer - Prüfung - Teil 2: Akustische PrüfverfahrenThis European Standard was approved by CEN on 9 September 2002.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2002 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13819-2:2002 E
EN 13819-2:2002 (E)2ContentsPageForeword.3Introduction.41Scope.52Normative references.53Terms and definitions.54Test methods.54.1Insertion loss (ear-muffs only).54.1.1 Principle.54.1.2 Apparatus.64.1.3 Procedure.64.1.4 Report.64.2Sound attenuation.64.2.1 Principle.64.2.2 Apparatus.64.2.3 Procedure.64.2.4 Report.74.3Sound level effective to the ear (ear-muffs only).74.3.1Principle.74.3.2Apparatus.84.3.3Procedure.84.3.4Report.8Annex A
(informative)
Uncertainty of measurement and interpretation of test results.10Annex ZA (informative) Clauses of this European standard addressing essential requirements orother provisions of EU Directive.12Bibliography.13
EN 13819-2:2002 (E)3ForewordThis document (EN 13819-2:2002) has been prepared by Technical Committee CEN/TC 159, "Hearing protectors",the secretariat of which is held by SIS.This European Standard shall be given the status of a national standard, either by publication of an identical text orby endorsement, at the latest by May 2003, and conflicting national standards shall be withdrawn at the latest byMay 2003.This document has been prepared under a mandate given to CEN by the European Commission and the EuropeanFree Trade Association, and supports essential requirements of EU Directive(s).For relationship with EU Directives, see informative Annex ZA, which is an integral part of this standard.In this European Standard the Annex A is informative.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain,Sweden, Switzerland and the United Kingdom.
EN 13819-2:2002 (E)4IntroductionThis standard for ”Hearing Protectors Testing : Part 2 - Acoustic test methods”, specifies procedures for the testingof personal hearing protection devices in relation to Directive 89/686/EEC - Personal Protective Equipment.EN 352-1 deals with requirements for ear-muffs, EN 352-2 with ear-plugs, EN 352-3 with ear-muffs attached toindustrial safety helmets. EN 13819 deals with testing plans common to all types of hearing protectors and consistsof two Parts:Part 1: Physical test methodsPart 2: Acoustic test methods.Additional safety requirements and the associated test procedures for level-dependent ear-muffs are contained inEN 352-4, for ear-muffs with active noise reduction in EN 352-5, for ear-muffs with audio communications inEN 352-6 and for level-dependent ear-plugs in EN 352-7.An associated standard EN 458, covers selection, use, care and maintenance of hearing protectors.This standard is intended as a supplement to the specific product standards for hearing protectors.The performance requirements are given in the hearing protector product standard.If deviations from the procedures specified in this standard are necessary, these deviations are specified in thehearing protection product standard.4.1 specifies a method of measuring the insertion loss of ear-muffs using an acoustic test fixture.4.2 specifies a method of measuring the sound attenuation of hearing protectors using human test subjects.4.3 specifies a method of sound immission measurement carried out with miniature microphones inserted in the earcanals of human test subjects. The technique is known as the microphone in real ear technique (MIRE technique).
EN 13819-2:2002 (E)51 ScopeThis European Standard EN 13819-2 specifies acoustic test methods for hearing protectors. The purpose of thesetests is to enable assessment of the performance of the hearing protector as specified in the appropriate productstandard.2 Normative referencesThis European Standard incorporates by dated or undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the text and the publications are listed hereafter. Fordated references, subsequent amendments to or revisions of any of these publications apply to this EuropeanStandard only when incorporated in it by amendment or revision. For undated references the latest edition of thepublication referred to applies (including amendments).EN 24869-1, Acoustics - Hearing protectors - Part 1: Subjective method for the measurement of sound attenuation(ISO 4869-1:1990)EN 24869-3, Acoustics - Hearing protectors - Part 3: Simplified method for the measurement of insertion loss ofear-muff type protectors for quality inspection purposes (ISO/TR 4869-3:1989)EN ISO 4869-2, Acoustics - Hearing protectors - Part 2: Estimation of effective A- weighted sound pressure levelswhen hearing protectors are worn (ISO 4869-2:1994)EN ISO 11904-1:2002, Acoustics - Determination of sound immissions from sound sources placed close to the ears- Part 1: Technique using a microphone in a real ear (MIRE-technique)(ISO 11904-1:2002)3 Terms and definitionsFor the purposes of this European Standard, the following terms and definitions apply.3.1acoustic test fixture (ATF)device that approximates certain dimensions of an average adult human head and is used for measuring theinsertion loss of ear-muffs, as defined in EN 24869-33.2insertion lossmean algebraic difference in decibels between the one-third octave band sound pressure level, measured by themicrophone of the acoustic test fixture in a specified sound field under specified conditions, with the hearingprotector absent, and the sound pressure level with the hearing protector on, with other conditions identical3.3sound attenuationfor a given test signal, the mean difference in decibels between the threshold of hearing with and without thehearing protector in place, for a panel of test subjects4 Test methods4.1 Insertion loss (ear-muffs only)4.1.1 PrincipleThe insertion loss of each cup of the ear-muffs is measured at specified one-third octave band centre frequencies.
EN 13819-2:2002 (E)64.1.2 ApparatusThe required equipment, including a suitable acoustic test fixture and test site, is described in EN 24869-3. Forhelmet mounted ear-muffs, a suppo
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