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 title
Lärmschutzeinrichtungen an Strassen - Prüfverfahren zur Bestimmung der akustischen Eigenschaften - Teil 2 : Produktspezifische Merkmale der Luftschalldämmung unter den Bedingungen eines diffusen Schallfeldes.
Original language
English,
French
Pages
46
Original language
English,
French
Pages
46
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