|
125Hz |
250Hz |
500Hz |
1kHz |
2kHz |
4KHz |
|||
|
Brick, unpainted |
0.03 |
0.03 |
0.03 |
0.04 |
0.05 |
0.07 |
||
|
8" Concrete Block, painted |
0.10 |
0.05 |
0.06 |
0.07 |
0.09 |
0.08 |
||
|
8" Concrete Block, unpainted |
0.36 |
0.44 |
0.31 |
0.29 |
0.39 |
0.25 |
||
|
8" Concrete Block, painted w/rc 1 layer 5/8" drywall |
0.10 |
0.08 |
0.05 |
0.03 |
0.03 |
0.03 |
||
|
8" Concrete Block, painted w/rc 2 layer 5/8" drywall |
0.02 |
0.02 |
0.03 |
0.04 |
0.04 |
0.03 |
||
|
Drywall, 1 layer 1/2", on 2 x 4's, |
0.29 |
0.10 |
0.05 |
0.04 |
0.04 |
0.04 |
||
|
Drywall, 1 layer 5/8", on 2 x 4's, |
0.15 |
0.08 |
0.05 |
0.03 |
0.03 |
0.03 |
||
|
Drywall, 2 layer 5/8", on 2 x 4's, |
0.02 |
0.02 |
0.03 |
0.04 |
0.04 |
0.03 |
||
|
Door hollow |
0.28 |
0.20 |
0.10 |
0.10 |
0.08 |
0.08 |
||
|
Door solid |
0.10 |
0.07 |
0.05 |
0.04 |
0.04 |
0.04 |
||
|
Ceiling Tile, standard |
0.10 |
0.28 |
0.66 |
0.91 |
0.82 |
0.69 |
||
| Fiberglass 703 rigid insulation 1" on wall |
0.03
|
0.22
|
0.69
|
0.91
|
0.96
|
0.99
|
||
| Fiberglass 703 rigid insulation 2" on wall |
0.22
|
0.82
|
1.21
|
1.10
|
1.02
|
1.05
|
||
| Fiberglass 703 rigid insulation 3" on wall |
.53
|
1.19
|
1.21
|
1.08
|
1.01
|
1.04
|
||
| Fiberglass 703 rigid insulation 4" on wall |
.84
|
1.24
|
1.24
|
1.08
|
1.00
|
0.97
|
||
| Fiberglass 703 rigid insulation 6" on wall |
1.19
|
1.21
|
1.13
|
1.05
|
1.04
|
1.04
|
||
|
Floor, Concrete |
0.01 |
0.01 |
0.01 |
0.02 |
0.02 |
0.02 |
||
|
Floor, Linoleum |
0.02 |
0.03 |
0.03 |
0.03 |
0.03 |
0.02 |
||
|
Floor, wood on joists |
0.15 |
0.11 |
0.10 |
0.07 |
0.06 |
0.07 |
||
|
Floor, wood parquet on concrete |
0.04 |
0.04 |
0.07 |
0.06 |
0.06 |
0.07 |
||
|
Floor, carpet, 1/8" pile |
0.05 |
0.05 |
0.10 |
0.20 |
0.30 |
0.40 |
||
|
Floor, carpet. 1/4" pile |
0.05 |
0.10 |
0.15 |
0.30 |
0.50 |
0.55 |
||
|
Floor, carpet, 5/16" pile |
0.05 |
0.15 |
0.30 |
0.40 |
0.50 |
0.60 |
||
|
Glass, normal window |
0.35 |
0.25 |
0.18 |
0.12 |
0.07 |
0.04 |
||
|
Glass, heavy plate |
0.18 |
0.06 |
0.04 |
0.03 |
0.02 |
0.02 |
||
|
Glass, laminated 1/4" |
0.10 |
0.05 |
0.04 |
0.03 |
0.02 |
0.02 |
||
|
Glass, laminated 3/8" and heavier |
0.05 |
0.03 |
0.02 |
0.03 |
0.02 |
0.02 |
||
|
Plywood, 1/4" |
0.58 |
0.22 |
0.07 |
0.04 |
0.03 |
0.07 |
||
|
Plywood, 3/8" |
0.28 |
0.22 |
0.17 |
0.09 |
0.10 |
0.11 |
||
|
Plaster, rough finish |
0.02 |
0.03 |
0.04 |
0.05 |
0.04 |
0.03 |
||
|
Plaster, smooth finish |
0.02 |
0.02 |
0.03 |
0.04 |
0.04 |
0.03 |
||
|
wood paneling |
0.24 |
0.19 |
0.14 |
0.08 |
0.13 |
0.10 |
||
|
wood roof decking |
0.24 |
0.19 |
0.14 |
0.08 |
0.13 |
0.10 |
||
|
Carpet, 3/32" pile |
0.10 |
0.16 |
0.11 |
0.30 |
0.50 |
0.47 |
||
|
Carpet, 3/4" pile |
0.15 |
0.17 |
0.12 |
0.32 |
0.52 |
0.57 |
||
|
Carpet, 3/8" pile |
0.17 |
0.18 |
0.21 |
0.50 |
0.63 |
0.83 |
||
|
Carpet, 6/16" pile, 40oz/yd2, on hair pad |
0.03 |
0.25 |
0.55 |
0.70 |
0.62 |
0.84 |
||
|
Carpet, 6/16" pike, 86oz/yd2, on hair pad |
0.10 |
0.40 |
0.62 |
0.70 |
0.63 |
0.88 |
||
|
Carpet, 6/16" pike, 86oz/yd2, on hair and jute pad |
0.20 |
0.50 |
0.68 |
0.72 |
0.65 |
0.90 |
||
|
Carpet, 20oz/yd2 , loop pile (no pad) |
0.04 |
0.08 |
0.17 |
0.33 |
0.59 |
0.75 |
||
|
Carpet, 40oz/yd2, hair pad |
0.10 |
0.19 |
0.35 |
0.79 |
0.69 |
0.79 |
||
|
Miscellaneous |
||||||||
|
Person, adult |
2.50 |
3.50 |
4.20 |
4.60 |
5.00 |
5.00 |
||
|
Chair, wood |
0.15 |
0.20 |
0.24 |
0.30 |
0.50 |
0.50 |
||
|
Chair, theatre, heavy upholstery |
1.50 |
3.40 |
4.00 |
4.50 |
4.75 |
4.50 |
||
|
Couch |
3.50 |
4.50 |
5.00 |
5.50 |
5.50 |
4.50 |
||
|
Air, per 1000 cubic feet |
0.90 |
2.30 |
7.20 |