SIST EN 352-4:2021
(Main)Hearing protectors - Safety requirements - Part 4: Level-dependent earmuffs
Hearing protectors - Safety requirements - Part 4: Level-dependent earmuffs
This European Standard is applicable to level-dependent earmuffs. It specifies requirements on construction, design, performance, marking and user information related to the inclusion of the level-dependent functionality.
Gehörschützer - Sicherheitstechnische Anforderungen und Prüfungen - Teil 4: Pegelabhängige Kapselgehörschützer
Dieses Dokument ist anzuwenden für pegelabhängig dämmende Kapselgehörschützer. Es legt für die Integration der pegelabhängigen Funktionalität Anforderungen hinsichtlich Konstruktion, Gestaltung, Leistung, Kennzeichnung und Benutzerinformationen fest.
Pegelabhängig dämmende Kapselgehörschützer sind dazu konstruiert, die Wiedergabe von Umgebungsgeräuschen zu ermöglichen, während sie bei hohen Pegeln eine Dämmung des Schalls bewirken. Sie können für die Anwendung in Umgebungen mit intermittierendem oder Impulslärm, in der gleichzeitig äußere akustische Warnsignale gehört werden müssen, eingesetzt werden. Dieses Dokument behandelt diejenigen Kapselgehörschützer, die mit einem elektronischen Schaltkreis für die Schallwiedergabe ausgestattet sind.
Protecteurs individuels contre le bruit - Exigences de sécurité et essais - Partie 4 : Serre-tête à atténuation dépendante du niveau
Le présent document est applicable aux serre-tête à atténuation dépendante du niveau. Il spécifie les exigences en matière de construction, de conception, de performances et de marquage ainsi que les informations destinées à l'utilisateur pour ce qui concerne l'incorporation de la fonctionnalité d'atténuation dépendante du niveau.
Les serre-tête à atténuation dépendante du niveau sont conçus pour restituer les sons externes tout en assurant l'affaiblissement des sons à des niveaux élevés. Ils peuvent être sélectionnés pour une utilisation dans des environnements de bruit intermittent ou impulsionnel ainsi que dans des lieux où il faut pouvoir entendre des sons avertisseurs de danger. Le présent document concerne de tels serre-tête équipés d'un circuit électronique de restitution du son.
Varovala sluha - Varnostne zahteve - 4. del: Naušniki, prilagodljivi ravni hrupa
General Information
Relations
Overview
EN 352-4:2020 - published by CEN - is the European standard for level-dependent earmuffs (earmuffs with an electronic sound restoration circuit). It specifies safety requirements on construction, design, performance, marking and user information that are specific to the level-dependent functionality. The standard ensures restored low-level environmental sounds are audible while high-level sounds are attenuated to protect users from harmful noise exposure.
Key topics and technical requirements
- Scope: Applies to level-dependent earmuffs designed to restore external sounds and attenuate high-level sounds; intended for intermittent or impulse noise where warning signals must be heard.
- Definitions: Includes terms such as sound restoration circuit and criterion levels (H, M, L) used to characterize level-dependent behaviour.
- Performance / Criterion levels:
- Criterion levels are determined per test procedures in EN 13819-3:2019 (clause 7.2.2).
- For products intended only for impulse-type noise: minimum criterion levels H, M and L = 85 dB(A).
- For products not limited to impulse-only use: minimum criterion levels H = 97 dB(A), M = 96 dB(A), L = 94 dB(A).
- The criterion levels are established to limit A‑weighted equivalent diffuse-field related sound pressure at the ear to 85 dB(A) when the restoration circuit is at maximum volume.
- Marking: Use the marking requirements in EN 352-1:2020 (or EN 352-3:2020 as appropriate). No extra marking is required specifically for level-dependent functionality.
- Manufacturer’s instructions: Must include a reference to EN 352-4:2020; indicate the level-dependent feature; provide the measured criterion levels; battery-check/charging/replacement instructions; warnings about battery-related performance deterioration and operational checks; and a warning if the product is not suitable for high continuous noise (when it only meets impulse-only criteria).
Applications and who uses this standard
- Practical uses: selection, design, testing and certification of level-dependent hearing protectors for environments where situational awareness is required (e.g., intermittent or impulsive noise workplaces where warning signals must be heard).
- Primary users: manufacturers, PPE designers, test laboratories, conformity assessors, safety managers and procurement teams responsible for hearing protection and compliance with EU PPE Regulation (EU) 2016/425.
Related standards
- EN 352 series (family): EN 352-1, EN 352-2, EN 352-3, EN 352-5… (EN 352-4 is part of this family)
- Test methods: EN 13819-1, EN 13819-2, EN 13819-3:2019
- Guidance: EN 458 (selection, use, care and maintenance of hearing protection)
Keywords: EN 352-4:2020, level-dependent earmuffs, hearing protectors, criterion levels, EN 13819-3, PPE Regulation 2016/425, CEN.
Frequently Asked Questions
SIST EN 352-4:2021 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Hearing protectors - Safety requirements - Part 4: Level-dependent earmuffs". This standard covers: This European Standard is applicable to level-dependent earmuffs. It specifies requirements on construction, design, performance, marking and user information related to the inclusion of the level-dependent functionality.
This European Standard is applicable to level-dependent earmuffs. It specifies requirements on construction, design, performance, marking and user information related to the inclusion of the level-dependent functionality.
SIST EN 352-4:2021 is classified under the following ICS (International Classification for Standards) categories: 13.340.20 - Head protective equipment. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 352-4:2021 has the following relationships with other standards: It is inter standard links to SIST EN 352-4:2001, SIST EN 352-4:2001/A1:2006. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN 352-4:2021 is associated with the following European legislation: EU Directives/Regulations: 2016/425, 89/686/EEC; Standardization Mandates: M/571, M/571 AMD 1, M/BC/CEN/90/2. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
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Standards Content (Sample)
SLOVENSKI STANDARD
01-april-2021
Nadomešča:
SIST EN 352-4:2001
SIST EN 352-4:2001/A1:2006
Varovala sluha - Varnostne zahteve - 4. del: Naušniki, prilagodljivi ravni hrupa
Hearing protectors - Safety requirements - Part 4: Level-dependent earmuffs
Gehörschützer - Sicherheitstechnische Anforderungen und Prüfungen - Teil 4:
Pegelabhängige Kapselgehörschützer
Protecteurs individuels contre le bruit - Exigences de sécurité et essais - Partie 4 : Serre-
tête à atténuation dépendante du niveau
Ta slovenski standard je istoveten z: EN 352-4:2020
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 352-4
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2020
EUROPÄISCHE NORM
ICS 13.340.20 Supersedes EN 352-4:2001
English Version
Hearing protectors - Safety requirements - Part 4: Level-
dependent earmuffs
Protecteurs individuels contre le bruit - Exigences de Gehörschützer - Sicherheitstechnische Anforderungen
sécurité et essais - Partie 4 : Serre-tête à atténuation und Prüfungen - Teil 4: Pegelabhängige
dépendante du niveau Kapselgehörschützer
This European Standard was approved by CEN on 18 June 2018.
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 352-4:2020 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Requirements . 6
4.1 General . 6
4.2 Performance . 6
4.2.1 Criterion levels . 6
4.2.2 Criterion levels for products intended for use in impulse-type noise situations only . 6
4.2.3 Criterion levels for products not intended for use in impulse-type noise situations
only . 6
5 Marking . 6
6 Manufacturer's instructions and information . 7
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Regulation (EU) 2016/425 of the European Parliament and of the
Council of 9 March 2016 on personal protective equipment aimed to be covered. 8
Bibliography . 9
European foreword
This document (EN 352-4:2020) 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 supersedes EN 352-4:2001, EN 352-4:2001/A1:2005.
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.
In comparison with the previous edition, the following technical modifications have been made:
Clause/Paragraph/Table/Figure Change
Clause 4 new requirements on criterion levels added
Clause 5 removed, reference to EN 13819-3:2019, 7.2.2 added
Annex A removed
Annex B removed, reference to EN 13819-3:2019, 7.2.2 added
NOTE 1 The technical changes referred to include the significant technical changes from the EN revised but
is not an exhaustive list of all modifications from the previous edition.
NOTE 2 The modifications include previously issued guidance documents according to Article 24 §11 in the
EU Regulation (EU) 2016/425 on personal protective equipment. No changes have been made to minimum
safety requirements. The modifications do not affect the state of art of the product requirements for these
products.
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.
Introduction
The requirements of the standard are concerned with the level-dependent performance of the earmuffs.
The criterion levels within this standard are determined to limit the sound pressure level effective to
the ear to 85 dB(A).
EN 352-4 is part of a family of standards describing product requirements:
— 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 wit
...
Die SIST EN 352-4:2021 ist eine bedeutende europäische Norm, die sich mit dem Thema der Gehörschutzmittel befasst, insbesondere mit den sogenannten level-dependent Ohrschützern. Der Anwendungsbereich dieser Norm ist klar definiert: Sie richtet sich an Herstellende und Nutzer von Ohrenschützern mit level-abhängiger Funktionalität und legt spezifische Anforderungen fest, die für die Konstruktion, das Design und die Leistung dieser Produkte notwendig sind. Einer der größten Stärken der SIST EN 352-4:2021 ist ihr umfassender Ansatz, der eine klare Definition der Sicherheitsanforderungen sicherstellt. Diese Norm berücksichtigt sowohl technische Aspekte als auch die Benutzerinformation, die für die sichere Anwendung der Gehörschutzprodukte unerlässlich ist. Durch detaillierte Vorgaben zur Kennzeichnung und zur Bereitstellung von Nutzerinformationen wird gewährleistet, dass Anwender optimal informiert sind und die Schutzmittel korrekt verwenden können. Ein weiterer wichtiger Aspekt der Norm ist deren Relevanz in unterschiedlichen Einsatzbereichen. Level-abhängige Ohrschützer finden Anwendung in Berufen, wo es auf eine sichere Geräuschreduktion ankommt, gleichzeitig aber die Wahrnehmung von Umgebungsgeräuschen notwendig ist, beispielsweise in der Industrie und im Militär. Die Norm fördert nicht nur die Sicherheit, sondern unterstützt auch die Kommunikation und das situative Bewusstsein der Nutzer. Insgesamt stellt die SIST EN 352-4:2021 ein essentielles Dokument dar, das sowohl den Herstellern als auch den Anwendern von level-abhängigen Ohrenschützern eine verlässliche Grundlage bietet. Die klaren Anforderungen und die Berücksichtigung der Benutzerbedürfnisse machen die Norm zu einem wertvollen Instrument zur Verbesserung des Gehörschutzes in verschiedenen Berufsfeldern.
The SIST EN 352-4:2021 standard serves as a comprehensive framework for level-dependent earmuffs, establishing crucial safety requirements relevant to their design and use. This standard meticulously details essential specifications regarding construction, ensuring that the earmuffs not only provide optimal auditory protection but also allow for auditory awareness in varying sound environments, which is particularly essential in occupational settings where communication is vital. One of the standout features of the standard is its emphasis on performance parameters. By outlining requirements for the level-dependent functionality, the standard ensures that these earmuffs can effectively mitigate harmful noise levels while enabling users to hear low-level sounds, enhancing safety and situational awareness. This balance between protection and environmental awareness is critical, making the standard highly relevant to industries such as construction, manufacturing, and other fields where exposure to loud noises is routine. Moreover, the SIST EN 352-4:2021 includes specific guidelines for marking and user information, ensuring that end users receive clear instructions on the proper usage and limitations of level-dependent earmuffs. This focus on user communication enriches the standard’s applicability, empowering users to make informed decisions regarding their hearing protection. The standard's relevance extends beyond compliance; it serves as a benchmark for quality and safety in the sector of hearing protectors. By adhering to the SIST EN 352-4:2021, manufacturers can assure customers of the dependability and efficacy of their level-dependent earmuffs, ultimately fostering trust in their products. In summary, the SIST EN 352-4:2021 standard is pivotal in setting forth a clear and robust framework for level-dependent earmuffs, addressing construction, design, performance, marking, and user information, making it an indispensable resource in the pursuit of auditory safety and awareness in various work environments.
SIST EN 352-4:2021は、レベル依存型イヤーマフに関する欧州標準であり、その適用範囲は非常に重要である。この標準は、レベル依存型イヤーマフの構造、デザイン、性能、マーキング、およびユーザー情報に関する要求事項を定めている。特に、レベル依存機能の統合に関連する要件は、耳の保護を求めるユーザーにとって不可欠であり、安全性と快適さを両立させる役割を果たしている。 この標準の強みは、レベル依存型イヤーマフの設計に際して必要な具体的な基準を提供することである。これにより、製造業者は製品が安全であり、かつ使用者にとって効果的な防護を提供することを保証できる。特に、環境音を効果的に調整する機能は、作業環境でのコミュニケーションを可能にするとともに、危険を察知する能力を損なうことなく、聴覚を保護する。 また、SIST EN 352-4:2021は、マーキングやユーザー情報についての要求を詳細に規定しているため、消費者が製品の機能性を正確に理解し、適切に使用する手助けとなる。これにより、安全な作業環境を確保する上での重要なリソースとなっている。 この標準は、耳の保護を重視する産業分野において、レベル依存型イヤーマフの設計と使用における一貫性を促進し、さらなる安全性の向上に寄与することが期待される。ユーザーが安心して利用できる製品を提供するためには、SIST EN 352-4:2021の遵守が不可欠であり、その重要性は今後益々高まっていくと考えられる。
SIST EN 352-4:2021은 수준 의존성 귀마개에 대한 유럽 표준으로, 귀마개 안전 요구사항을 충족시키는 데 중점을 두고 있습니다. 이 표준은 귀마개의 구성, 설계, 성능, 표기 및 사용자 정보와 관련된 요구사항을 명확히 규정하고 있습니다. 수준 의존성 기능이 포함된 귀마개는 사용자가 주변 소리를 듣는 동시에 높은 음압에서 귀를 보호할 수 있도록 설계되어야 하며, 이 문서는 그러한 기능성을 보장하기 위한 기초를 제공합니다. 표준의 강점 중 하나는 귀마개의 설계와 제조에 관한 구체적인 체크리스트를 제공함으로써 제조업체들이 정확하게 규제를 준수하도록 돕는 점입니다. 이러한 명확한 요구사항은 제품 품질을 보장하고, 사용자에게 보다 안전한 귀마개를 제공할 수 있도록 합니다. 또한, 표준은 사용자에게 사용 방법 및 주의사항에 대한 명확한 정보를 제공하여, 올바른 사용을 통해 귀 보호의 효과를 극대화하도록 유도합니다. 이 표준은 다양한 산업 분야에서 소음으로부터 작업자를 보호하는 데 필수적인 역할을 하며, 특히 건설, 제조 및 기타 높은 소음 수준의 작업 환경에서 요구되는 수준에 맞춘 귀마개 사용에서 그 중요성이 강조됩니다. SIST EN 352-4:2021은 안전성과 기능성을 결합한 수준 의존성 귀마개의 설계와 적용의 현대적 기준을 제시하여, 귀 보호 장치를 사용하는 모든 사용자들에게 실질적인 이익을 제공합니다.
La norme SIST EN 352-4:2021, qui porte sur les protecteurs auditifs et spécifiquement sur les oreillettes à niveau dépendant, offre un cadre standardisé exhaustif concernant les exigences de sécurité. Son domaine d'application se concentre sur les oreillettes qui intègrent cette fonctionnalité avancée, garantissant ainsi que les utilisateurs bénéficient d'une protection auditif tout en maintenant un niveau de perception des sons ambiants. Parmi les forces notables de cette norme, on trouve sa clarté dans les exigences relatives à la construction et à la conception des oreillettes. Cette standardisation est vitale pour assurer la qualité et la sécurité des produits destinés aux utilisateurs, notamment dans des environnements professionnels où le bruit peut être un facteur de risque. La norme stipule également des critères de performance précis, ce qui permet d'évaluer efficacement l'efficacité des oreillettes à niveau dépendant. Un autre point fort de la SIST EN 352-4:2021 réside dans ses orientations sur le marquage et l'information utilisateur. Cela renforce non seulement la transparence pour le consommateur, mais favorise également une utilisation sécurisée des protecteurs auditifs, facilitant la compréhension des fonctionnalités spécifiques offertes par les oreillettes. En termes de pertinence, la norme est d'une grande importance dans le contexte actuel où la santé auditive est de plus en plus reconnue comme un enjeu majeur. En établissant une référence pour les protecteurs auditifs, elle contribue à améliorer la sécurité au travail tout en protégeant les utilisateurs de la surdité induite par le bruit. En somme, la SIST EN 352-4:2021 s'affirme comme une norme essentielle pour les oreillettes à niveau dépendant, établissant des exigences fiables et claires pour les fabricants, tout en garantissant la sécurité et la satisfaction des utilisateurs.
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