Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 2: Intrinsic characteristics of airborne sound insulation; German version EN 1793-2:1997— 6 стр.
Acoustics - Measurement of sound insulation in buildings and of building elements - Part 3: Laboratory measurements of airborne sound insulation of building elements (ISO 140-3:1995 + AM 1:2004); German version EN 20140-3:1995 + A1:2004— 32 стр.
Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 2: Intrinsic characteristics of airborne sound insulation under diffuse sound field conditions; German version EN 1793-2:2012— 15 стр.
Road traffic noise reducing devices - Non-acoustic performance - Part 2: General safety and environmental requirements; German version EN 1794-2:1998— 10 стр.
Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 2: Intrinsic characteristics of airborne sound insulation under diffuse sound field conditions; German version EN 1793-2:2012— 15 стр.
