NS ISO 140-9 Ed. 1 (1993) 标准详情
- 标准号:NS ISO 140-9 Ed. 1 (1993)
- 中文标题:
- 英文标题:Acoustics - Measurement Of Sound Insulation In Buildings And Of Building Elements - Part 9: Laboratory Measurement Of Room-to-room Airborne Sound Insulation Of A Suspended Ceiling With A Plenum Above It
- 标准类别:挪威标准NS
- 发布日期: