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Norm
ÖNORM EN 352-4
Issue date: 2021 05 01
Hearing protectors - Safety requirements - Part 4: Level-dependent earmuffs
This document is applicable to level-dependent earmuffs. It specifies requirements on construction, design, performance, marking and user information related to the inclu...
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Valid
Publisher:
Austrian Standards International
Format:
Digital | 10 Pages
Language:
German
| English
| Download GER/ENG
Optionally co-design standards:
ICS
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.
ÖNORM EN 352-4
2021 05 01
Hearing protectors - Safety requirements - Part 4: Level-dependent earmuffs
Norm
↖
ÖNORM EN 352-4
2006 01 01
Hearing protectors - Safety requirements and testing - Part 4: Level-dependent ear-muffs (consolidat...
Norm
ÖNORM EN 352-4
2001 08 01
Hearing protectors - Safety requirements and testing - Part 4: Level-dependent ear-muffs
Norm