| NRC RATING FOR WEDGE FOAM |
| PROPERTY |
1" Wedge
|
2" Wedge
|
3" Wedge
|
| OVERALL NRC |
.52
|
.81
|
.88
|
| NRC @ 125 Hz |
.09
|
.13
|
.22
|
| NRC @ 250 Hz |
.12
|
.29
|
.48
|
| NRC @ 500 Hz |
.33
|
.89
|
1.04
|
| NRC @ 1000 Hz |
.65
|
1.08
|
1.07
|
| NRC @ 2000 Hz |
.96
|
.97
|
.94
|
| NRC @ 4000 Hz |
1.01
|
1.04
|
1.08
|
| Testing for the NRC Rating was done by the Reverberation Room Method (ASTM C423) | |||