RO
SR EN 20140-9:1998
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 (ISO 140-9:1985)
The standard specifies a laboratory method of measuring the airborne sound insulation of a suspended ceiling with a plenum of defined height mounted above an acoustical barrier which seperates two rooms of a specified test facility. The method may be extended to composite ceiling systems including luminaires, ventilations systems
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Status :
Withdrawn
Approval date : 2/27/1998
Publish date : 2/28/1998
Withdrawal date : 5/30/2007
Number of pages : 12
ICS : 91.120.20 acoustics in building.Sound insulation
Technical Committee : 276 - Building acoustics
- Replaced by SR EN ISO 10848-2:2006