Hearing Conservation and Noise Control. WHY?????? It’s the LAW Quality of Life Gradual / Painless.

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Presentation transcript:

Hearing Conservation and Noise Control

WHY?????? It’s the LAW Quality of Life Gradual / Painless

Anatomy of the Ear Semi-Circular Canals Auditory Nerve Pinna Hammer-Anvil-Stirrup Cochlea

Types of Hearing Loss Conductive Central Sensorineural

Degree of Risk Frequency Intensity Duration Individual Variability

How Loud is Loud? Jet engine140 db Threshold of Pain125 db Pneumatic hammer110 db Compressed Air105+ db Punch Press 95 db Lawn Mower 90 db Conversation 65 db

Personal Protective Equipment advantages / disadvantages Cotton Balls Canal Blockers Ear Muffs Ear Plugs NRRs (example on next page)

NRRs EPA protocol For “A” scale measurements NRR – 7 Noise exposure 92 dBA Manufacturer’s NRR – 7 = 25 ( effective noise exposure reduction ) 92 – 25 = 67 dBA

Exposure Limits ACGIH85 dBA NIOSH85 dBA OSHA 84  dBA dBA 90 dBA

Noise Monitoring Required by the OSHA standard to identify all noise above 80 dBA Monitoring must be performed whenever there is an increase in production or equipment is added that could increase the noise level

Audiograms

Training requirements Annual Training Hearing Conservation Elements Hearing Protectors

Recordkeeping Monitoring records Audiometric testing records

Noise Control Engineering Administrative Personal Protective Equipment

What we’re doing to control noise Fill in here what you’re company is doing to reduce exposure to noise……..