British Standards Document
BS EN 1793-1
Road traffic noise reducing devices. Test method for determining the acoustic performance. Intrinsic characteristics of sound absorption under diffuse sound field conditions

https://doi.org/10.3403/30321298U

BS EN 1793-1 is maintained by B/509/6. The current release of this standard is:

BS EN 1793-1:2017 Road traffic noise reducing devices. Test method for determining the acoustic performance. Intrinsic characteristics of sound absorption under diffuse sound field conditions

https://doi.org/10.3403/30321298 (published 30/04/2017)

This standard is available from the following sources:

Other historical versions of this standard document also exist:

BS EN 1793-1:2012 [current until 06/04/2017]
BS EN 1793-1:1998 [current until 28/02/2013]