| |
|
|
|
|
|
|
|
|
|
| > stretched in front of concrete |
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
| frequencies (Hz) |
aw |
Class |
NRC |
125 |
250 |
500 |
1000 |
2000 |
4000 |
| Vibrasto 03 +
AM foam 25 mm |
0.57 (H) |
C |
0.70 |
0.10 |
0.31 |
0.57 |
0.79 |
0.82 |
0.81 |
| Vibrasto 03 +
air gap 25mm |
0.25 (H) |
E |
0.30 |
0.03 |
0.09 |
0.15 |
0.28 |
0.45 |
0.46 |
Test reports available (Vibrasto, 2006)
Standard NF EN 20354 / ISO 354. |
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
| > stretched in front of gypsum board screwed to structure and mineral fibre base 45mm |
|
| |
|
|
|
|
|
|
|
|
|
| frequencies (Hz) |
aw |
Class |
NRC |
125 |
250 |
500 |
1000 |
2000 |
4000 |
| Vibrasto 03 + AM foam 35 mm |
0.67 (H) |
C |
0.70 |
0.43 |
0.39 |
0.62 |
0.82 |
0.82 |
0.81 |
| Vibrasto 03 + air gap 35mm |
0.27 (H) |
D |
0.30 |
0.34 |
0.21 |
0.19 |
0.26 |
0.54 |
0.60 |
