Železniční aplikace - Kolej - Protihlukové zábrany a souvisící zařízení proti šíření zvuku vzduchem - Zkušební metoda pro zjištění akustického výkonu - Část 5: Inherentní charakteristiky - Na místě zjištěné hodnoty odrazu zvuku v přímém zvukovém poli (Norma k přímému použití jako ČSN).
NORMA vydána dne 1.11.2014
Designation standards: ČSN P CEN/TS 16272-5
Classification mark: 736342
Catalog number: 95716
Publication date standards: 1.11.2014
The number of pages: 44
Approximate weight : 132 g (0.29 lbs)
Country: Czech technical standard
Kategorie: Technické normy ČSN
This Technical Specification describes a test method for determining the intrinsic characteristics of sound reflection of noise barriers and claddings designed for railways in non-reverberant conditions (a measure of intrinsic performance). It can be applied in situ, i.e. where the noise barriers are installed. The method can be applied without damaging the surface. The method can be used to qualify products to be installed along railways as well as to verify the compliance of installed noise barriers to design specifications. Regular application of the method can be used to verify the long term performance of noise barriers. The method requires the average of results of measurements taken in different points in front of the device under test and/or for specific angles of incidences. The method is able to investigate flat and non-flat products