EN ISO 7235-2009 声学.风道消音装置和风道末端装置的实验室测量程序.插入损失,流动噪声和总压力损失
EN ISO 7235-2009 标准详情
- 标准号：EN ISO 7235-2009
- 中文标题：声学.风道消音装置和风道末端装置的实验室测量程序.插入损失,流动噪声和总压力损失
- 英文标题：acoustics - laboratory measurement procedures for ducted silencers and air-terminal units - insertion loss, flow noise and total pressure loss
- 标准类别：欧盟标准EN
- 发布日期：2009-08-01
内容简介
Describes the methods for determining- - the insertion loss, in frequency bands, of ducted silencers with and without airflow; - the sound power level, in frequency bands, of the flow noise (or regenerated sound) generated by ducted silencers; - the
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