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Noise (Risk assessment considerations for noise (Effects of exposure…
Noise
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Noise exposure limits
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Exposure limit value
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If exposure limit value is exceeded, employer must:
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Noise measurement
Simple noise level meter - measures instant levels of noise in workplace, used for spot checks
Integrating sound level meter - measures noise over a period of time to give a time-weighted average
Dosimeter - integrating sound level meter worn by workers to give results relating to individual exposure; useful where workers are exposed to varying levels of noise
Noise control measures
Reducing noise at source
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Damping - the use of materials to change resonance characteristics of metal to stop it 'ringing'. Achieved by changing part, stiffening part or adding material to one side of it
Modifying work processes - To produce less noise, for example use of plastic bottles instead of glass bottles drink manufacture
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