EN 352-5:2002

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Varovala sluha - Varnostne zahteve in preskušanje - 5. del: Naušniki za zmanjšanje delovnega hrupaGehörschützer - Sicherheitstechnische Anforderungen und Prüfungen - Teil 5: Kapselgehörschützer mit aktiver GeräuschkompensationProtecteurs individuels contre le bruit - Exigences de sécurité et essais - Partie 5: Serre-tete a atténuation active du bruitHearing protectors - Safety requirements and testing - Part 5: Active noise reduction ear-muffs13.340.20Varovalna oprema za glavoHead protective equipmentICS:Ta slovenski standard je istoveten z:EN 352-5:2002SIST EN 352-5:2003en01-april-2003SIST EN 352-5:2003SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 352-5December 2002ICS 13.340.20English versionHearing protectors - Safety requirements and testing - Part 5:Active noise reduction ear-muffsProtecteurs individuels contre le bruit - Exigences desécurité et essais - Partie 5: Serre-tête à atténuation activedu bruitGehörschützer - Sicherheitstechnische Anforderungen undPrüfungen - Teil 5: Kapselgehörschützer mit aktiverGeräuschkompensationThis European Standard was approved by CEN on 16 October 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 352-5:2002 ESIST EN 352-5:2003

(informative)
Uncertainty of measurement and interpretation of test results.9Annex B (informative)
Determination of active attenuation and spread of active attenuationfor active noise reduction ear-muffs.12Annex ZA
(informative)
Clauses of this European standard addressing essentialrequirements or other provisions of EU Directive.14Bibliography.15SIST EN 352-5:2003

EN 13819-1
and EN 13819-2 deal with testing plans common to all types ofhearing protectors covered by this series of ENs.Additional safety requirements and the associated test procedures for level-dependent ear-muffs arecontained in EN 352-4, for ear-muffs with electrical audio input in prEN 352-6 and for level-dependent ear-plugs in prEN 352-7.
An associated standard EN 458, covers selection, use, care and maintenance ofhearing protection.The particular requirement for hearing protectors in relation to their ability to reduce noise to below daily limitlevels set by Directive 86/188/EEC - "on the protection of workers from the risks related to exposure to noise atwork" is addressed in the standard by means of a requirement to report the active component of attenuationprovided by the ear-muffs, to complement the passive attenuation data reported within EN 352-1.An additional acoustic performance test method to that described in EN 24869-1 and applied in EN 352-1, EN352-2 and EN 352-3 is required for active noise reduction ear-muffs. Until such time as this work is completed thetest method
described in Annex B of this standard is recommended for active noise reduction ear-muffs inaddition to the EN 24869-1 test.Active noise reduction ear-muffs are designed to provide additional attenuation of external sounds by means of anoise cancellation circuit. This additional attenuation is usually provided at low and mid frequencies. They may beselected for use in low frequency dominated high noise environments.This part of the standard is a specification intended for type approval purposes, for which four sets of specimenear-muffs are tested (further samples may be required for testing under EN 352-1, or EN 352-3, as appropriate).The requirements and tests of the standard are concerned primarily with the active noise reduction performanceof the ear-muffs. The standard may be applied to ear-muffs for fitting to industrial safety helmets.1 ScopeThis European Standard is concerned with active noise reduction (ANR) ear-muffs. It specifies additionalconstructional, design and performance requirements, methods of test, marking requirements and userinformation relating to the incorporation of the active noise reduction facility.The requirements of this standard are intended to take account of the ergonomic interaction between thewearer, the device and, where possible, the working environment in which the device is likely to be used (seeAnnex ZA of this standard and EN 458)2 Normative referencesThis European Standard incorporates by dated or undated reference, provisions from other publications.These normative references are cited at the appropriate places in the text and the publications are listedhereafter. For dated references, subsequent amendments to or revisions of any of these publications apply tothis European Standard only when incorporated in it by amendment or revision. For undated references thelatest edition of the publication referred to applies (including amendments).EN 352-1:2002, Hearing protectors - General requirements - Part 1: Ear-muffsSIST EN 352-5:2003

The scheme of testingshall be as specified in 5.1.3.4.3.2 Active attenuationThe sound output levels of the four test samples shall be measured in accordance with 5.2 and reported in wearerinformation (6.1).SIST EN 352-5:2003
...