Performance Standards
Center Frequency (cycles per second) | Maximum Permitted Sound Pressure Level (decibels) | |
|---|---|---|
31.5 | 65 | |
63 | 67 | |
125 | 66 | |
250 | 59 | |
500 | 52 | |
1,000 | 46 | |
2,000 | 37 | |
4,000 | 26 | |
8,000 | 17 |
Octave Band (cycles per second) | Maximum Permitted Sound Pressure Level (decibels) | |
|---|---|---|
20 to 74 | 67 | |
75 to 149 | 66 | |
150 to 299 | 61 | |
300 to 599 | 54 | |
600 to 1,199 | 47 | |
1,200 to 2,399 | 39 | |
2,400 to 4,799 | 29 | |
4,800 to 20,000 | 20 |
Vibration Displacement (inches) | |||
|---|---|---|---|
Frequency (cycles per second) | Steady-State | Impact | |
Under 10 | 0.0005 | 0.0010 | |
10 to 19 | 0.0004 | 0.0008 | |
20 to 29 | 0.0003 | 0.0006 | |
30 to 39 | 0.0002 | 0.0004 | |
40 and over | 0.0001 | 0.0002 | |
Performance Standards
Center Frequency (cycles per second) | Maximum Permitted Sound Pressure Level (decibels) | |
|---|---|---|
31.5 | 65 | |
63 | 67 | |
125 | 66 | |
250 | 59 | |
500 | 52 | |
1,000 | 46 | |
2,000 | 37 | |
4,000 | 26 | |
8,000 | 17 |
Octave Band (cycles per second) | Maximum Permitted Sound Pressure Level (decibels) | |
|---|---|---|
20 to 74 | 67 | |
75 to 149 | 66 | |
150 to 299 | 61 | |
300 to 599 | 54 | |
600 to 1,199 | 47 | |
1,200 to 2,399 | 39 | |
2,400 to 4,799 | 29 | |
4,800 to 20,000 | 20 |
Vibration Displacement (inches) | |||
|---|---|---|---|
Frequency (cycles per second) | Steady-State | Impact | |
Under 10 | 0.0005 | 0.0010 | |
10 to 19 | 0.0004 | 0.0008 | |
20 to 29 | 0.0003 | 0.0006 | |
30 to 39 | 0.0002 | 0.0004 | |
40 and over | 0.0001 | 0.0002 | |