DIN EN ISO 4869-4 (2000-10) 标准详情
- 标准号:DIN EN ISO 4869-4 (2000-10)
- 中文标题:
- 英文标题:Hearing protectors - Part 4: Measurement of effective sound pressure levels for level-dependent sound-restoration ear-muffs (ISO/TR 4869-4:1998); English version DIN EN ISO 4869-4
- 标准类别:德国标准DIN
- 发布日期: