Silent earplug frequency and attenuation data:
Frequencies Hz |
125 |
250 |
500 |
1k |
2K |
4K |
6K |
8K |
Attenuation db |
24 |
24 |
19.7 |
20.7 |
30 |
44 |
46.3 |
47 |
Std Deviation db |
4.1 |
4.3 |
4.5 |
4.0 |
4.6 |
4.8 |
5.5 |
6.2 |
Tested according to U.S. Standards ANSI S12.6 - 1997. |