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Barn Safety - Manitoba Pork Council

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exposure level to below 85dBA and, at the employer’s expense, the worker must be<br />

provided with audiometric tests as follows:<br />

• An initial baseline test as soon as possible but not later than 70 days from initial<br />

exposure,<br />

• A further test at least once every year,<br />

• Only a physician, an audiologist or an industrial audiometric technical may perform<br />

the audiometric testing.<br />

Hearing protection is something that should never be underestimated or underutilized.<br />

Hearing tests help judge the protection offered by employee hearing protection.<br />

Employees should notify their supervisor or employer to access these testing services.<br />

Selection of hearing protection should be done based on current hearing abilities,<br />

comfort, job tasks and the potential dBA to be encountered.<br />

SOURCE OF NOISE<br />

DECIBEL LEVEL (dBA)<br />

Ventilation Fan – Chore time<br />

77 dBA<br />

Swine <strong>Barn</strong> Nursery<br />

66 – 69 dBA<br />

Hammermill<br />

94 dBA<br />

Swine <strong>Barn</strong> Gestation<br />

95 – 104 dBA<br />

Chainsaw<br />

115 dBA<br />

Swine in Confinement at Feeding<br />

121 – 133 dBA<br />

12 Gauge Shotgun 135 – 139 dBA

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