EN 352-7:2002

Hearing protectors - Safety requirements and testing - Part 7: Level-dependent ear-plugs

This European Standard is concerned with level-dependent ear-plugs. It specifies additional constructional, design and performance requirements, methods of test, marking requirements and user information relating to the incorporation of the level-dependency facility. The requirements of this standard are intended to take account of the ergonomic interaction between the wearer, the device and where possible the working environment in which the device is likely to be used (see Annex ZA, of this standard and EN 458).

Gehörschützer - Sicherheitstechnische Anforderungen und Prüfungen - Teil 7: Pegelabhängig dämmende Gehörschutzstöpsel

Diese Europäische Norm behandelt pegelabhängig dämmende Gehörschutzstöpsel. Er legt für die Baugruppe der pegelabhängigen Schalldämmung geltende Anforderungen hinsichtlich Konstruktion, Gestaltung, Eigenschaften, Kennzeichnung und Benutzerinformationen fest und nennt entsprechende Prüfverfahren. Die Anforderungen dieser Norm haben das Ziel, die ergonomische Wechselwirkung zwischen dem Benutzer, dem Gerät und wo möglich der Arbeitsumgebung, in der das Gerät  voraussichtlich benutzt wird, zu berücksichtigen (siehe Anhang ZA dieser Norm und EN 458).

Protecteurs individuels contre le bruit - Exigences de sécurité et essais - Partie 7: Bouchons d'oreilles à atténuation dépendante du niveau

La présente Norme européenne traite des bouchons d'oreilles à système électronique de restitution du son dépendant du niveau. Elle spécifie les exigences supplémentaires en matière de construction, de conception, de performance, les méthodes d'essai et les exigences de marquage ainsi que les informations destinées à l'utilisateur et relatives à la mise en place du dispositif d'atténuation dépendante du niveau. Elle ne concerne pas les performances des bouchons d'oreilles dans un environnement de bruit impulsionnel.
Les exigences de la présente norme prennent en compte l'interaction ergonomique entre l'utilisateur, le dispositif et, lorsque cela est possible, l'environnement de travail auquel le dispositif est destiné (voir Annexe ZA de la présente norme et l'EN 458).

Varovala sluha - Varnostne zahteve in preskušanje - 7. del: Čepi, prilagodljivi ravni hrupa

General Information

• Status: Withdrawn
• Publication Date: 03-Dec-2002
• Withdrawal Date: 17-Nov-2020
• ICS: 13.340.20 - Head protective equipment
• Technical Committee: CEN/TC 159 - Hearing protectors
• Drafting Committee: CEN/TC 159/WG 2 - Amplitude sensitive hearing protectors
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Completion Date: 18-Nov-2020
• Directive: 2016/425 - Regulation (EU) 2016/425 of the European Parliament and of the Council of 9 March 2016 on personal protective equipment and repealing Council Directive 89/686/EEC
• Directive: 89/686/EEC - Council Directive 89/686/EEC of 21 December 1989 on the approximation of the laws of the Member States relating to personal protective equipment
• Directive: 93/68/EEC - Council Directive amending Dir. 87/404/EEC (simple pressure vessels), 88/378/EEC (safety of toys), 89/106/EEC (construction products), 89/336/EEC (electromagnetic compatibility), 89/392/EEC (machinery), 89/686/EEC (personal protective equipment), 90/384/EEC (automatic weighing instruments), 90/385/EEC (active implantable medicinal devices), 90/396/EEC (appliances burning gaseous fuels), 91/263/EEC (telecommunications terminal equipment), 92/42/EEC and 73/23/EEC
• Directive: 93/95/EEC - Personal protective equipment (Dir. 89/686/EEC amendment)
• Directive: 96/58/EC - Personal protective equipment (Dir. 89/686/EEC amendment)
• Mandate: M/031 - Standardization mandate to CEN/CENELEC concerning standards for Personal Protective Equipment
• Ref Project: SIST EN 352-7:2003 - Hearing protectors - Safety requirements and testing - Part 7: Level-dependent ear-plugs

Relations

• Replaced By: EN 352-7:2020 - Hearing protectors - Safety requirements - Part 7: Level-dependent earplugs
• Effective Date: 25-Nov-2020

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Hearing protectors - Safety requirements and testing - Part 7: Level-dependent ear-plugsKUXSDProtecteurs individuels contre le bruit - Exigences de sécurité et essais - Partie 7: Bouchons d'oreilles a atténuation dépendante du niveauGehörschützer - Sicherheitstechnische Anforderungen und Prüfungen - Teil 7: Pegelabhängig dämmende Gehörschutzstöpsel13.340.20Varovalna oprema za glavoHead protective equipmentICS:SIST EN 352-7:2003enTa slovenski standard je istoveten z:EN 352-7:200201-april-2003SIST EN 352-7:2003SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 352-7December 2002ICS 13.340.20English versionHearing protectors - Safety requirements and testing - Part 7:Level-dependent ear-plugsProtecteurs individuels contre le bruit - Exigences desécurité et essais - Partie 7: Bouchons d'oreilles àatténuation dépendante du niveauGehörschützer - Sicherheitstechnische Anforderungen undPrüfungen - Teil 7: Pegelabhängig dämmendeGehörschutzstöpselThis 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 352-7:2002 E

(informative)
Uncertainty of measurement and interpretation of test results.8Annex B (informative)
Determination of criterion level for level-dependent ear-plugs.10Annex ZA
(informative)
Clauses of this European standard addressing essential requirementsor other provisions of EU Directive.12Bibliography.13

An associated standard EN 458, covers selection, use, care and maintenance of hearing protection.The particular requirement for hearing protectors in relation to their ability to reduce noise to below daily limit levels setby Directive 86/188/EEC - "on the protection of workers from the risks related to exposure to noise at work" isaddressed in the standard by means of a requirement to report in which noise environments the hearing protector maybe used without exceeding the relevant action level set by that Directive.The test method for hearing protector attenuation described in EN 24869-1 and applied in Parts 1, 2 and 3 is notsufficient for level-dependent ear-plugs. Additional methods of measurement, for the purposes of determining thesound delivered to the wearer's ear from the sound restoration circuit, are under consideration.
Until such time as thiswork is completed, the test method described in Annex B of this standard is recommended for level-dependent ear-plugs, in addition to the EN 24869-1 test.Level-dependent ear-plugs are designed to provide restoration of external sounds, while providing attenuation ofsounds at high levels. They may be selected for use in intermittent or impulsive noise environments and where externalwarning sounds are required to be heard. This standard is concerned with those ear-plugs having an electronic soundrestoration circuit.This part of the standard is a specification intended for type approval purposes, for which 4 sets of specimen ear-plugsare tested, (further samples may be required for testing under EN 352-2).The requirements and tests of the standard are concerned primarily with the level-dependent performance of theear-plugs.1 ScopeThis European Standard is concerned with ear-plugs fitted with an electronic level-dependent sound restorationfunction. It specifies additional constructional, design and performance requirements, methods of test, markingrequirements and user information relating to the incorporation of the level-dependency facility. The performance of theear-plug in impulsive noise is not addressed.The requirements of this standard are intended to take account of the ergonomic interaction between the wearer,the device and, where possible, the working environment in which the device is likely to be used (see Annex ZA ofthis standard and EN 458)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 352-2:2002, Hearing protectors - General requirements - Part 2: Ear-plugsEN 13819-1, Hearing protectors - Testing - Part 1: Physical test methods

sound pressure levelwhen a level-dependent ear-plug is worn first exceeds 85 dB(A), calculated as the mean plus one standard deviationperformance for the samples tested3.3 criterion level (L)A-weighted sound pressure level of the L noise for which the A-weighted diffuse-field related
sound pressure levelwhen a level-dependent ear-plug is worn first exceeds 85 dB(A), calculated as the mean plus one standard deviationperformance for the samples tested3.4 level-dependent ear-plugear-plug fitted with an electronic level-dependent sound restoration circuit3.5 sound restoration circuitelectroacoustic device intended to reproduce lower level external sounds in the ear canal, while usually providingattenuation of higher level sounds by means of a level-dependent gain function4 Requirements4.1 GeneralLevel-dependent ear-plugs shall meet the requirements of EN 352-2. Additional requirements are listed below.4.2 Materials and constructionThe electronic circuit of the level-dependent ear-plug shall meet the electrical safety and EMC requirementsappropriate to this class of equipment.4.3 Performance4.3.1 GeneralLevel-dependent ear-plugs shall meet all the performance requirements of EN 352-2, including the minimumattenuation requirement in their passive mode. Additionally, the requirements specified below in 4.3.2 shall be satisfied.Specimens of ear-plugs shall be conditioned and tested as specified in 5.1.1 and 5.1.2.
The scheme of testing shall beas specified in 5.1.3.

as determined by the procedures described in the Annex B;d) recommended storage conditions before and after use;e) method of checking, charging and changing batteries;f) for ear-plugs with level-dependency, the statements:1) ”This ear-plug is provided with level-dependent attenuation. The wearer should check correct operationbefore use. If distortion or failure is detected, the wearer should refer to the manufacturers advice formaintenance and replacement of the battery.”

hours (to be inserted by the manufacturer).”3) ”Warning - The output of the level-dependent circuit of this hearing protector may exceed the daily limit soundlevel.”g) the address from which additional information can be obtained.Information according with 6.1 shall be provided at least in the official language(s) of the European state of destination.6.2 Additional informationThe following information shall be available from the manufacturer on request:a) results of tests performed in accordance with this standard;b) the name and country of the test laboratory which performed the tests specified and the date of the tests.Information according with 6.2 shall be provided at least in the official language(s) of the European state of destination.7 MarkingThe requirements for marking given in EN 352-2 shall be used. The generic mark “EN 352” as specified in EN 352-2 is used, since a product may meet EN 352-2 and EN 352-7 simultaneously.
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