BA500
Tegelik heliisolatsiooniindeks (valjuhääldi)
Apparent sound reduction index (loudspeaker)
L2
DEFINITION · EN
ariborne sound insulation of a building element when the sound source is a loudspeaker and the angle of incidence is 45°
ExamplesEN ISO 12354-3:2017
CONNECTED ↘
ÜlemkoodBAkustilised omadused
last_edited: 16.05.2026, 11:08