� ili
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26
27
� ili
acoustics
ili 130 60 x 50
no polyester wool
polyester wool
40/150 vertical
150mm in panels
polyester wool
40/35 horizontal
soft side on panel
polyester wool
40/35 horizontal
hard side on panel
aw (ISO 11654)
0,10
(H) 0,70
0,85
0,90
NRC (ATM - C423)
0,05
0,70
0,85
0,85
SAA (ASTM - C423)
0,06
0,71
0,81
0,83
frequency [Hz]
sound absorption coefficent as [m2]
125
0,02
0,25
0,27
0,29
250
0,04
0,58
0,65
0,70
500
0,06
0,66
0,87
0,89
1000
0,05
0,72
0,83
0,83
2000
0,09
0,88
0,89
0,89
4000
0,11
0,94
0,95
0,96
frequency [Hz]
125
250
500
1000
2000
4000
sound absorption coefcient aₛ [m2]
0,0
1,0
0,8
0,6
0,4
0,2
1,2
no polyester wool
polyester wool 40/35 horizontal,
soft side on panel
polyester wool 40/150 vertical,
150mm in panels
polyester wool 40/35 horizontal,
hard side on panel
