Hearing protectors - General requirements - Part 1: Earmuffs

This document specifies requirements for construction, design, performance, marking and user information for earmuffs.
In particular, it specifies requirements regarding the sound attenuation of the earmuffs, measured in accordance with EN ISO 4869-1:2018.
The document does not apply to earmuffs outside the size range of headsizes as defined in this standard.
This document does not apply to earmuffs for attachment to head protection and/or face protection devices.
Ergonomic aspects are addressed by taking into account, within the requirements, the interaction between the user, the device and where possible the working environment in which the device is likely to be used (see Annex ZA and EN 458).

Gehörschützer - Allgemeine Anforderungen - Teil 1: Kapselgehörschützer

Dieses Dokument legt Anforderungen hinsichtlich Konstruktion, Gestaltung, Leistung, Kennzeichnung und Benutzerinformation für Kapselgehörschützer fest.
Im Besonderen legt es Anforderungen bezüglich der Schalldämmung der Kapselgehörschützer fest, gemessen in Übereinstimmung mit EN ISO 4869 1:2018.
Dieses Dokument ist nicht anzuwenden für Kapselgehörschützer außerhalb des in diesem Dokument definierten Bereichs von Kopfgrößen.
Dieses Dokument ist nicht anzuwenden für Kapselgehörschützer zur Befestigung an Kopfschutz und/oder Gesichtsschutzeinrichtungen.
Ergonomische Aspekte werden innerhalb der Anforderungen durch die Einbeziehung der Wechselwirkung zwischen dem Gehörschutzbenutzer, dem Gehörschutz und, wo möglich, der Arbeitsumgebung, in dem der Gehörschutz wahrscheinlich benutzt wird, berücksichtigt (siehe Anhang ZA und EN 458).

Protecteurs individuels contre le bruit - Exigences générales - Partie 1 : Serre-tête

Le présent document spécifie les exigences en matière de construction, de conception, de performances et de marquage des serre-tête ainsi que les informations destinées à l'utilisateur.
Il spécifie en particulier les exigences relatives à la déclaration de l'affaiblissement acoustique des serre-tête, mesuré conformément à l'EN ISO 4869-1:2018.
Le présent document ne s'applique pas aux serre-tête dont la taille n'appartient pas à la gamme de tailles définie dans la présente norme.
Le présent document ne s'applique pas aux serre-tête destinés à être montés sur des dispositifs de protection de la tête et/ou du visage.
Dans les exigences spécifiées, les aspects ergonomiques sont abordés par la prise en compte de l'interaction entre l'utilisateur, l'équipement et, quand cela est possible, l'environnement de travail dans lequel l'équipement est susceptible d'être utilisé (voir l'Annexe ZA et l'EN 458).

Varovala sluha - Splošne zahteve - 1. del: Naušniki

General Information

Status
Published
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Due Date
18-Nov-2020
Completion Date
18-Nov-2020

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SLOVENSKI STANDARD
SIST EN 352-1:2021
01-april-2021
Nadomešča:
SIST EN 352-1:2003
Varovala sluha - Splošne zahteve - 1. del: Naušniki
Hearing protectors - General requirements - Part 1: Earmuffs
Gehörschützer - Allgemeine Anforderungen - Teil 1: Kapselgehörschützer

Protecteurs individuels contre le bruit - Exigences générales - Partie 1: Serre-tête

Ta slovenski standard je istoveten z: EN 352-1:2020
ICS:
13.340.20 Varovalna oprema za glavo Head protective equipment
SIST EN 352-1:2021 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 352-1:2021
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SIST EN 352-1:2021
EN 352-1
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2020
EUROPÄISCHE NORM
ICS 13.340.20 Supersedes EN 352-1:2002
English Version
Hearing protectors - General requirements - Part 1:
Earmuffs

Protecteurs individuels contre le bruit - Exigences Gehörschützer - Allgemeine Anforderungen - Teil 1:

générales - Partie 1 : Serre-tête Kapselgehörschützer
This European Standard was approved by CEN on 24 February 2020.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this

European Standard the status of a 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 or to any CEN

member.

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

Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,

Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and

United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 352-1:2020 E

worldwide for CEN national Members.
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SIST EN 352-1:2021
EN 352-1:2020 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

Introduction .................................................................................................................................................................... 4

1 Scope .................................................................................................................................................................... 6

2 Normative references .................................................................................................................................... 6

3 Terms, definitions, symbols and abbreviations ................................................................................... 6

3.1 Terms and definitions ................................................................................................................................... 6

3.2 Symbols and abbreviations ......................................................................................................................... 8

4 Requirements ................................................................................................................................................... 8

4.1 Sizing .................................................................................................................................................................... 8

4.2 Materials and construction .......................................................................................................................... 9

4.2.1 Materials ............................................................................................................................................................. 9

4.2.2 Construction ...................................................................................................................................................... 9

4.3 Performance ..................................................................................................................................................... 9

4.3.1 General ................................................................................................................................................................ 9

4.3.2 Sizing and adjustability ................................................................................................................................. 9

4.3.3 Cup rotation ................................................................................................................................................... 10

4.3.4 Headband force ............................................................................................................................................. 10

4.3.5 Cushion pressure .......................................................................................................................................... 10

4.3.6 Resistance to damage when dropped ................................................................................................... 11

4.3.7 Resistance to damage when dropped at low temperature (optional) ...................................... 11

4.3.8 Change in headband force (including optional water immersion with headband

under stress) .................................................................................................................................................. 11

4.3.9 Insertion loss ................................................................................................................................................. 11

4.3.10 Resistance to leakage .................................................................................................................................. 11

4.3.11 Ignitability ...................................................................................................................................................... 11

4.3.12 Minimum sound attenuation ................................................................................................................... 11

5 Marking ............................................................................................................................................................ 12

6 User information .......................................................................................................................................... 12

Annex A (informative) Technical changes between this document and the previous edition

of this European Standard ........................................................................................................................ 15

Annex ZA (informative) Relationship between this European Standard and the essential

requirements of Regulation (EU) 2016/425 aimed to be covered ............................................. 17

Bibliography ................................................................................................................................................................. 19

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SIST EN 352-1:2021
EN 352-1:2020 (E)
European foreword

This document (EN 352-1:2020) has been prepared by Technical Committee CEN/TC 159 “Hearing

protectors”, the secretariat of which is held by DIN.

This European Standard shall be given the status of a national standard, either by publication of an

identical text or by endorsement, at the latest by May 2021, and conflicting national standards shall be

withdrawn at the latest by November 2023.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CEN shall not be held responsible for identifying any or all such patent rights.

This document will supersede EN 352-1:2002.

The technical changes between this document and the previous edition of this European Standard are

listed in Annex A.

This document has been prepared under a standardization request given to CEN by the European

Commission and the European Free Trade Association, and supports essential requirements of

EU Regulation(s).

For relationship with EU Regulation(s), see informative Annex ZA, which is an integral part of this

document.

According to the CEN-CENELEC Internal Regulations, the national standards organisations of the

following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,

Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,

Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of

North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the

United Kingdom.
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SIST EN 352-1:2021
EN 352-1:2020 (E)
Introduction

This document sets requirements for personal hearing protection devices in relation to Regulation

(EU) 2016/425 on personal protective equipment.

The particular requirement in relation to the ability of hearing protectors to reduce noise below limit

levels is addressed in the standard by requiring the sound attenuation of the hearing protectors,

measured in accordance with EN ISO 4869-1, to be not less than a specified minimum. Further, by

requiring that the measured sound attenuation be declared, the selection of suitable hearing protectors

for individual circumstances can be undertaken according to established practice.

EN 352-1 is part of a family of standards describing product requirements for hearing protectors:

— EN 352-1, Hearing protectors — General requirements — Part 1: Earmuffs
— EN 352-2, Hearing protectors — General requirements — Part 2: Earplugs

— EN 352-3, Hearing protectors — General requirements — Part 3: Earmuffs attached to head

protection and/or face protection devices

— EN 352-4, Hearing protectors — Safety requirements — Part 4: Level-dependent earmuffs

— EN 352-5, Hearing protectors — Safety requirements — Part 5: Active noise reduction earmuffs

— EN 352-6, Hearing protectors — Safety requirements — Part 6: Earmuffs with safety-related audio

input

— EN 352-7, Hearing protectors — Safety requirements — Part 7: Level-dependent earplugs

— EN 352-8, Hearing protectors — Safety requirements — Part 8: Entertainment audio earmuffs

— EN 352-9, Hearing protectors — Safety requirements — Part 9: Earplugs with safety-related audio

input

— EN 352-10, Hearing protectors — Safety requirements — Part 10: Entertainment audio earplugs

Test methods for these requirements for all types of hearing protectors are described in the following

standards:
— EN 13819-1, Hearing protectors — Testing — Part 1: Physical test methods
— EN 13819-2, Hearing protectors — Testing — Part 2: Acoustic test methods

— EN 13819-3, Hearing protectors — Testing — Part 3: Supplementary acoustic test methods

An associated standard EN 458 covers selection, use, care and maintenance of hearing protection.

The parts of EN 352, other than parts 1, 2 and 3, cover the performance of functions additional to

passive hearing protection. Hearing protectors which incorporate one or more of these functions are

subject to the requirements and tests of each of the relevant parts of EN 352-4 to EN 352−10, in

addition to that of parts 1, 2 or 3, as appropriate.

The requirements of this document are concerned primarily with the physical and acoustic

performance of the earmuffs.
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SIST EN 352-1:2021
EN 352-1:2020 (E)

The sizing requirements enable the majority of the user population to be fitted satisfactorily by

“medium size range” earmuffs. Individuals with other sizes can be accommodated by ”small size range”

or “large size range” earmuffs, which are required to be accompanied by information regarding the

range of sizes which they are designed to fit.

The document also calls for the values of sound attenuation provided by the earmuffs (measured in

accordance with EN ISO 4869-1) in order to assist users in selecting the most appropriate model of

earmuffs for their needs. Minimum values of sound attenuation are also specified.

A maximum variability in insertion loss, measured objectively after a series of performance tests, is

specified. The objective test method only facilitates the making of comparative measurements, and the

insertion loss values obtained will differ from the measured sound attenuation values. The method to

determine the sound attenuation values, which requires the earmuffs to be tested whilst being worn by

human test subjects, is regarded as providing the reference test method for the measurement of the

acoustic performance of hearing protectors.
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SIST EN 352-1:2021
EN 352-1:2020 (E)
1 Scope

This document specifies requirements for construction, design, performance, marking and user

information for earmuffs.

In particular, it specifies requirements regarding the sound attenuation of the earmuffs, measured in

accordance with EN ISO 4869-1:2018.

The document does not apply to earmuffs outside the size range of headsizes as defined in this

document.

This document does not apply to earmuffs for attachment to head protection and/or face protection

devices.

Ergonomic aspects are addressed by taking into account, within the requirements, the interaction

between the user, the device and where possible the working environment in which the device is likely

to be used (see Annex ZA and EN 458).
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments) applies.

EN 13819-1:2020, Hearing protectors — Testing — Part 1: Physical test methods
EN 13819-2:2020, Hearing protectors — Testing — Part 2: Acoustic test methods

EN ISO 4869-2:2018, Acoustics — Hearing protectors — Part 2: Estimation of effective A-weighted sound

pressure levels when hearing protectors are worn (ISO 4869-2:2018)
3 Terms, definitions, symbols and abbreviations
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
3.1.1
passive hearing protection

hearing protection that provides attenuation of external sounds not by means of electronics

Note 1 to entry: All hearing protectors have the characteristics of reducing noise by their design and type of

material used. Devices that have only this function are called passive hearing protection.

3.1.2
cup

hollow component which is mounted on the equivalent headband and to which a cushion and a liner are

usually fitted
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SIST EN 352-1:2021
EN 352-1:2020 (E)
3.1.3
cushion

deformable component, usually containing a foam plastic or fluid filling, fitted to the rim of the cup to

improve the comfort and fit of the earmuff on the head
3.1.4
liner

acoustically absorptive material contained within the cup which is intended to increase the attenuation

of the earmuffs at certain frequencies
3.1.5
headband

band, usually of metal and/or plastics, designed to enable the earmuff to fit securely around

the ears by exerting force against the cups and pressure through the cushions
3.1.6
earmuff

hearing protector consisting of circumaural cups pressed or held against the head around each pinna

3.1.6.1
over-the-head earmuff
earmuff designed to be worn with the headband passing over the top of the head
3.1.6.2
behind-the-head earmuff
earmuff designed to be worn with the headband passing behind the head
3.1.6.3
under-the-chin earmuff
earmuff designed to be worn with the headband passing under the chin
3.1.6.4
universal earmuff

earmuff designed to be worn as over-the-head, behind-the-head and under-the-chin earmuff

3.1.7
headstrap
flexible strap fitted to each cup, or to the headband close to the cup

Note 1 to entry: A headstrap is designed to support behind-the-head and under-the-chin earmuffs by passing

over, and resting on top of the head.
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SIST EN 352-1:2021
EN 352-1:2020 (E)
3.1.8
insertion loss

mean algebraic difference, in decibels, between the one-third-octave-band sound pressure level

measured by the microphone of the acoustic test fixture in a specified sound field under specified

conditions with the hearing protector absent and the sound pressure level with the hearing protector

present, with other conditions identical

[SOURCE: EN ISO 4869-3:2007, 3.5, modified — The words “mean”, “in a specified sound field under

specified conditions” and “with other conditions identical” have been added.]
3.1.9
sound attenuation

for a given test signal, the mean difference in decibels between the threshold of hearing with and

without the hearing protector in place

Note 1 to entry: Measured in accordance with EN ISO 4869-1:2018 for a panel of test subjects.

[SOURCE: EN ISO 4869-1:2018, 3.8, modified — The words “for a given test signal” have been moved to

beginning of definition, the words “mean”, “in decibels” have been added, the words “for a test subject”

have been deleted and Note 1 to entry has been added.]
3.1.10
hygiene cover

temporary, disposable covers fitted over the cushions and intended to protect them from the effects of

dirt, perspiration, cosmetics, etc.
3.2 Symbols and abbreviations

For the purposes of this document, the following symbols and abbreviations apply.

H High-frequency attenuation value
M Medium-frequency attenuation value
L Low-frequency attenuation value

APV Assumed Protection Value for frequency f and a protection performance of 98 %

f98
SNR Single Number Rating
PPE Personal Protective Equipment
4 Requirements
4.1 Sizing
Earmuffs shall be classified into three size ranges:

— ‘medium size range' if their adjustability complies with 4.3.2.2 a) and 4.3.2.2 b), as appropriate;

— 'small size range' if their adjustability complies with 4.3.2.3 a) and 4.3.2.3 b), as appropriate;

— 'large size range' if their adjustability complies with 4.3.2.4 a) and 4.3.2.4 b), as appropriate.

'Small size range’ and ‘large size range' earmuffs shall be accompanied by the user information specified

in Clause 6 k).
NOTE A model of earmuffs can fall into one or more size ranges.
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SIST EN 352-1:2021
EN 352-1:2020 (E)
4.2 Materials and construction
4.2.1 Materials

4.2.1.1 Those parts of the earmuffs that come into contact with the skin shall be non-staining, soft

and pliable.

4.2.1.2 Those parts of the earmuffs that come into contact with the skin shall not be likely to cause

skin irritation, allergic reaction or have any other adverse effect on health.
NOTE A written statement confirming this requirement
...

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