
Acoustics - Measurement Of Sound Insulation In Buildings And Of Building Elements - Part 9: Laboratory Measurements Of Room-to-room Airborne Sound Insulation Of A Suspended Ceiling With A Plenum Above It
出版:Polish Committee for Standardization

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基本信息
标准编号: PN EN 20140-9:1998
发布时间:1998/11/12 0:00:00
标准类别:Standard
出版单位:Polish Committee for Standardization
标准页数:11
标准简介
1998 [12/11/1998]
替代本标准的新标准
等同采用的国际标准
ISO 140-9:1985 - Identical