NS EN ISO 11691-2009 标准详情
- 标准号:NS EN ISO 11691-2009
- 中文标题:
- 英文标题:Acoustics - Determination Of Insertion Loss Of Ducted Silencers Without Flow - Laboratory Survey Method
- 标准类别:挪威标准NS
- 发布日期:
Defines a laboratory substitution method for determination of insertion loss without flow of ducted, mostly absorbent, circular and rectangular silencers in addition to other duct elements to be used in ventilation and air-conditioning systems.
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