UNE EN ISO 4869-4-2000 标准详情
- 标准号:UNE EN ISO 4869-4-2000
- 中文标题:
- 英文标题:Acoustics - Hearing Protectors - Part 4: Measurement Of Effective Sound Pressure Levels For Level-dependent Sound-restoration Ear-muffs
- 标准类别:西班牙国家标准UNE
- 发布日期:
Specifies a physical test procedure for level-dependent sound-restoration ear-muffs. The physical methods are made with the acoustic test fixture (ATF) according to ISO/TR 4869-3 according to ISO/TR 4869-3 or with a suitable head and torso simulator
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