NS ISO 140-9 Ed. 1 (1993)被替代
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
出版：Norwegian Standards (Norges Standardiseringsforbund)
专家解读视频
基本信息
标准编号： NS ISO 140-9 Ed. 1 (1993)
发布时间：1993/11/1 0:00:00
标准类别：Standard
出版单位：Norwegian Standards (Norges Standardiseringsforbund)
标准页数：0
标准简介
1ED 1993 [01/11/1993]
替代本标准的新标准
等同采用的国际标准
ISO 140-9:1985 - Identical
