| 标准编号 | EN 20140-9-1993 |
| 标准名称 | 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of Room-to- Room Airborne Sound Insulation of a Suspended Ceiling with a Plenum above it (ISO 140-9 : 1986) [Superseded By: CEN EN ISO 108 |
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| 实施日期 | 1993-09-30 |
| 废止日期 | 2006-04-01 |
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| 前言 | |
| 无 |
