NEN ISO 140-9 : 1994
Current
Current
The latest, up-to-date edition.
ACOUSTICS - MEASUREMENT OF SOUND INSULATION IN BUILDINGS AND BUILDING ELEMENTS - PART 9: LABORATORY MEASUREMENT OF ROOM-TO-ROOM AIRBORNE SOUND INSULATION OF A SUSPENDED CEILING WITH A PLENUM ABOVE IT
Published date
12-01-2013
Publisher
Defines 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 separates two rooms of a specified test facility.
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