DIN EN 352-4:2021
听力保护器. 安全要求. 第4部分: 依据声级的耳机护套; 德文版本EN 352-4-2020
Hearing protectors - Safety requirements - Part 4: Level-dependent earmuffs; German version EN 352-4:2020
2006-01
- 标准号
- DIN EN 352-4:2021
- 发布
- 2021年
- 发布单位
- 德国标准化学会
- 替代标准
- DIN EN 352-4:2006
- DIN EN 352-4:2017
- DIN EN 352-4:2021-03
- 当前最新
- DIN EN 352-4:2021
- DIN EN 352-4:2017
- DIN EN 352-4:2021-03
- 适用范围
- 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 ext