SS-EN-20140-9 | Acoustics - Measurements 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 | Document Center, Inc.

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Acoustics - Measurements 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

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EDITION 1 - ENGLISH LANGUAGE EDITION - March 25, 1994