ISO 140-9:1985 PDF
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
Open preview (PDF)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 itAcoustics — 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 status:
- Withdrawn
- Format:
- Electronic (PDF)
- Number of pages:
- 6
- Publication date:
- February 14, 1985
- Edition:
- ISO IS 140 edition 1 version 1
- ICS:
- 91.060.30
Specifies a method for measuring a quantity called the suspended ceiling normalized level difference when the sound transmitted by paths other than the required paths is negligible.
Technical details
- Technical committee
- ISO/TC 43/SC 2 - Building acoustics
- SKU
- ISO 140-9:1985


