British Standards Document
BS EN ISO 140-4
Acoustics. Measurement of sound insulation in buildings and of building elements. Field measurements of airborne sound insulation between rooms

https://doi.org/10.3403/01502663U

BS EN ISO 140-4 is maintained by EH/1. The current release of this standard is:

BS EN ISO 140-4:1998 Acoustics. Measurement of sound insulation in buildings and of building elements. Field measurements of airborne sound insulation between rooms

https://doi.org/10.3403/01502663 (published 15/10/1998)

This standard is available from the following sources:

Other historical versions of this standard document also exist: