BS EN 16272-2. Railway applications. Track. Noise barriers and related devices acting on airborne sound propagation. Test method for determining the acoustic performance . Part 2. Intrinsic characteristics. Airborne sound insulation in the laboratory under diffuse sound field conditions
BS EN 16272-2. Railway applications. Track. Noise barriers and related devices acting on airborne sound propagation. Test method for determining the acoustic performance . Part 2. Intrinsic characteristics. Airborne sound insulation in the laboratory under diffuse sound field conditions