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 140-9:1985).
NORMA vydána dne 29.12.1995
Designation standards: UNE-EN 20140-9:1995
Note: NEPLATNÁ
Publication date standards: 29.12.1995
The number of pages: 14
Approximate weight : 42 g (0.09 lbs)
Country: Spanish technical standard
Kategorie: Technické normy UNE