Canada Occupational Health and Safety Regulations (SOR/86-304)
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Regulations are current to 2024-11-11 and last amended on 2023-12-15. Previous Versions
SCHEDULE(Section 7.4)
Maximum Duration of Exposure to A-Weighted Sound Pressure Levels in the Work Place
Column I | Column II |
---|---|
A-weighted sound pressure level (dBA) | Maximum duration of exposure in hours per employee per 24 hour period |
87 | 8.0 |
88 | 6.4 |
89 | 5.0 |
90 | 4.0 |
91 | 3.2 |
92 | 2.5 |
93 | 2.0 |
94 | 1.6 |
95 | 1.3 |
96 | 1.0 |
97 | 0.80 |
98 | 0.64 |
99 | 0.50 |
100 | 0.40 |
101 | 0.32 |
102 | 0.25 |
103 | 0.20 |
104 | 0.16 |
105 | 0.13 |
106 | 0.10 |
107 | 0.080 |
108 | 0.064 |
109 | 0.050 |
110 | 0.040 |
111 | 0.032 |
112 | 0.025 |
113 | 0.020 |
114 | 0.016 |
115 | 0.013 |
116 | 0.010 |
117 | 0.008 |
118 | 0.006 |
119 | 0.005 |
120 | 0.004 |
- SOR/91-448, s. 1
- SOR/98-589, s. 8
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