OSHA  Noise Level Limits

 
 
Hours of exposure      /     Sound Level db(A)
8
90
6
92
4
95
3
97
2
100
1.5
102
1
105
.5
110
.25
115
OSHA standards are based on average noise exposure in a given time period.  The limit
for an 8-hour shift is 90 decibels.  At 85 decibels for an 8-hour shift hearing protection
must be offered, and regular audiometric examinations conducted.