Scope
This part of the Directive enhances and supplements Part VII (Levels of Sound) [http://laws-lois.justice.gc.ca/eng/regulations/SOR-86-304/FullText.html#h-70] of the COHSR and should be read in that context.
7.1 A copy of the signed report of any noise exposure investigation shall be given to the appropriate health and safety committee.
7.2 Departments shall ensure that employees exposed to a noise exposure level (Lex 8) equal to or greater than 84 dBA have their hearing tested, including the required audiograms, in accordance with the requirements outlined in the TB Occupational Health Evaluation Standard: http://www.tbs-sct.gc.ca/pol/doc-eng.aspx?id=12561.
7.3 Audiogram test results shall be permanently retained in employees' medical files.
Appendix A
|
Maximum permitted duration of exposure to A-weighted sound pressure level at the workplace |
|
|---|---|
|
Level dBA |
Maximum duration of exposure in hours per employee per 24 hours |
|
83 |
20 |
|
84 |
16 |
|
85 |
13 |
|
86 |
10 |
|
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 |
|
More than 102 |
0.00 |