BS EN 16272-3-2. Railway applications. Track. Noise barriers and related devices acting on airborne sound propagation. Test method for determining the acoustic performance . Part 3-2. Normalized railway noise spectrum and single number ratings for direct field applications
Railway applications. Track. Noise barriers and related devices acting on airborne sound propagation. Test method for determining the acoustic performance-Normalized railway noise spectrum and single number ratings for direct field applications
BS EN 16272-3-2. Railway applications. Track. Noise barriers and related devices acting on airborne sound propagation. Test method for determining the acoustic performance . Part 3-2. Normalized railway noise spectrum and single number ratings for direct field applications