DIN EN 352-4:2021 Edition

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Hearing protectors – Safety requirements – Part 4: Level-dependent earmuffs

Published By	Publication Date	Number of Pages
DIN	2021-03	11

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Category: DIN

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Description

This document 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. Level-dependent earmuffs are designed to provide restoration of external sounds, while providing attenuation of sounds at high levels. They may be selected for use in intermittent or impulsive noise environments and where external warning sounds are required to be heard. This document is concerned with those earmuffs having an electronic sound restoration circuit.

Additional information

Published Code	DIN
Published By	Deutsches Institut für Normung
Publication Date	2021-03
Pages Count	11
Language	Germany
Descriptors	Acoustic properties and phenomena, Acoustic signals, Acoustics, Audio, Audio signals, Bending, CE marking, Classes, Compensation, Components, Definitions, Design, Dispersion, Ear muffs, Ear protectors, Ear-muff type wearing protectors, Electronic engineering, Fire risks, Flammability, Force transducers, Head (anatomy), Health protection, Hearing protector, Heat sources, Information, Inspection, Instruments, Leakages, Level control, Malfunction, Marking, Materials, Measurement, Measuring equipment, Methods, Moisture, Neck (anatomy), Noise, Noise abatement, Noise control, Noise reduction, Occupational safety, Patterns, Performance, Performance requirements, Pressing force, Principle, Properties, Protective clothing, Protective equipment, Rotation, Safety, Safety engineering, Safety requirements, Setting range, Simulators, Size, Sound, Sound insulation, Sound intensity, Sound levels, Sound pressure level, Sound reproduction, Specification (approval), Switching circuits, Temperature, Test apparatus, Testing, Transmission, User information, Users, Visibility, Water, Whistles, Workplace safety, Procedures, Processes
File Size	1.2 MB

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DIN EN 352-4:2021 Edition

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