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Acoustical Data - Techmat® Low Density
| Frequency (Hz) | 1/4" | 1/2" | 1" |
| 250 | .04 ± .02 | .07 ± .02 | .15 ± .04 |
| 500 | .12 ± .01 | .24 ± .01 | .6 ± .03 |
| 1000 | .29 ± .01 | .55 ± .01 | 1.02 ± .02 |
| 2000 | .51 ± .01 | .79 ± .02 | 1.08 ± .02 |
| 4000 | .65 ± .01 | .91 ± .02 | .92 ± .02 |
| Noise Reduction Coefficient | 0.25 | 0.40 | 0.70 |
Acoustical Data - Techmat® High Density
| Frequency (Hz) | 1/4" | 1/2" | 1" |
| 250 | .04 ± .04 | .07 ± .02 | .29 ± .04 |
| 500 | .17 ± .02 | .30 ± .03 | .86 ± .03 |
| 1000 | .40 ± .04 | .72 ± .08 | .95 ± .04 |
| 2000 | .68 ± .03 | .94 ± .05 | .92 ± .03 |
| 4000 | .94 ± .05 | .97 ± .05 | .95 ± .05 |
| Noise Reduction Coefficient | 0.30 | 0.50 | 0.75 |
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