
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
標準編號: PN EN 20140-9:1998
發布時間:1998/11/12 0:00:00
標準類別:Standard
出版單位:Polish Committee for Standardization
標準頁數:11
標準簡介
1998 [12/11/1998]
替代本標準的新標準
等同采用的國際標準
ISO 140-9:1985 - Identical