5.5.1 A hearing conservation programme may be
provided for seafarers working in spaces with LAeq>85 dB(A) in order
to train them in the hazards of noise and use of hearing protection,
and to monitor hearing acuity. Some elements of a hearing conservation
programme are as follows:
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.1 Initial and periodic audiometric tests administered
by a trained and appropriately qualified person, to the satisfaction
of the Administration.
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.2 Instruction of exposed persons on the hazards
of high and long duration noise exposures and on the proper use of
ear protectors (see appendix 2).
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.3 Maintenance of audiometric test records.
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.4 Periodic analysis of records and hearing acuity
of individuals with high hearing loss.
5.5.2 An optional element of a hearing conservation
programme is to control the 24-hour equivalent continuous sound level
to which individuals working in high noise level spaces are exposed.
Such control requires calculation of the 24-hour equivalent continuous
sound level. If this 24-hour level does not meet the limits, the duration
of exposure should be controlled or hearing protectors used at appropriate
times to bring the individual's exposure within the limit.