Railway applications - Track - Noise barriers and related devices acting on airborne sound propagation - Test method for determining the acoustic performance - Part 4: Intrinsic characteristics - In situ values of sound diffraction under direct sound field
NORMA vydána dne 21.6.2017
Designation standards: UNE-EN 16272-4:2017
Publication date standards: 21.6.2017
The number of pages: 38
Approximate weight : 114 g (0.25 lbs)
Country: Spanish technical standard
Kategorie: Technické normy UNE