Superseded
Standard
Historical
NBN EN 20140-9:1995
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)
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Technical characteristics
| Publisher | Bureau de Normalisation Belge (NBN) |
| Publication Date | 02/01/1995 |
| Page Count | 0 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
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