SIST EN 352-2:2021+A1:2024

SLOVENSKI STANDARD
01-november-2024
Varovala sluha - Splošne zahteve - 2. del: Ušesni čepi (vključno z dopolnilom A1)
Hearing protectors - General requirements - Part 2: Earplugs
Gehörschützer - Allgemeine Anforderungen - Teil 2: Gehörschutzstöpsel
Protecteurs individuels contre le bruit - Exigences générales - Partie 2 : Bouchons
d'oreille
Ta slovenski standard je istoveten z: EN 352-2:2020+A1:2024
ICS:
13.340.20 Varovalna oprema za glavo Head protective equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 352-2:2020+A1
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2024
EUROPÄISCHE NORM
ICS 13.340.20 Supersedes EN 352-2:2020
English Version
Hearing protectors - General requirements - Part 2:
Earplugs
Protecteurs individuels contre le bruit - Exigences Gehörschützer - Allgemeine Anforderungen - Teil 2:
générales - Partie 2 : Bouchons d'oreille Gehörschutzstöpsel
This European Standard was approved by CEN on 24 February 2020 and includes Amendment 1 approved by CEN on 5 May
2024.
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, Türkiye 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
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 352-2:2020+A1:2024 E
worldwide for CEN national Members.

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 and adjustability . 8
4.1.1 Aural earplugs . 8
4.1.2 Banded earplugs . 8
4.2 Materials and construction . 9
4.2.1 Materials . 9
4.2.2 Construction . 9
4.3 Performance . 10
4.3.1 General . 10
4.3.2 Resistance to damage when dropped . 10
4.3.3 Resistance to damage when dropped at low temperature (optional) . 10
4.3.4 Cleaning . 10
4.3.5 Ignitability . 10
4.3.6 Minimum sound attenuation . 10
5 Marking . 11
6 User information . 11
6.1 General . 11
6.2 Information on the packaging . 11
6.3 Instructions supplied with the earplugs . 12
Annex A (informative) Technical changes between this document and the previous edition
of this European Standard . 14
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Regulation (EU) 2016/425 aimed to be covered . 16
Bibliography . 18

European foreword
This document (EN 352-2:2020+A1:2024) 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 December 2024, and conflicting national standards
shall be withdrawn at the latest by December 2024.
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 supersedes !EN 352-2:2020".
This document includes Amendment 1 approved by CEN on 5 May 2024.
The start and finish of text introduced or altered by amendment is indicated in the text by tags !".
The technical changes between this document and the previous edition of this European Standard are
listed in Annex A.
!The content of the changes added with Amendment A1 to EN 352-2:2020 refers only to banded
earplugs."
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.
!Any feedback and questions on this document should be directed to the users’ national standards
body. A complete listing of these bodies can be found on the CEN website."
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, Türkiye and the
United Kingdom.
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 352-2 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 −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 earplugs. It covers disposable, re-usable, custom moulded and banded earplugs.
In order to assist users to select the correct size(s) of earplugs, a nominal diameter, or range of
diameters, of the earplugs is required to be declared (except for custom moulded and semi-aural
earplugs).
In the case of banded earplugs, the standard specifies sizing requirements which enable the majority of
the user population to be fitted satisfactorily by “medium size range” earplugs. Individuals with other
sizes can be accommodated by “small size range” or “large size range” earplugs, which are required to
be accompanied by information regarding the range of sizes which they are designed to fit.
The standard also calls for the values of sound attenuation provided by the earplugs (measured in
accordance with EN ISO 4869-1) in order to assist users in selecting the most appropriate model of
earplugs for their needs. Minimum values of sound attenuation are also specified.
1 Scope
This document specifies requirements on construction, design, performance, marking and user
information for earplugs.
In particular, it specifies requirements regarding the sound attenuation of the earplugs, measured in
accordance with EN ISO 4869-1:2018.
This document applies to earplugs designed for users who are able to follow supplied instructions and
understand the related risks, can fit the earplugs correctly and can give feedback on the performance.
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+A1:2024, Hearing protectors — Testing — Part 1: Physical test methods"
EN 13819-2:2020, Hearing protector
...