British Standards Document
BS EN 1793-2
Road traffic noise reducing devices. Test method for determining the acoustic performance. Intrinsic characteristics of airborne sound insulation under diffuse sound field conditions

https://doi.org/10.3403/30345826U

BS EN 1793-2 is maintained by B/509/6. The current release of this standard is:

BS EN 1793-2:2018 Road traffic noise reducing devices. Test method for determining the acoustic performance. Intrinsic characteristics of airborne sound insulation under diffuse sound field conditions

https://doi.org/10.3403/30345826 (published 04/07/2018)

This standard is available from the following sources:

Other historical versions of this standard document also exist:

BS EN 1793-2:2012 [current until 04/07/2018]
BS EN 1793-2:1998 [current until 30/11/2012]