1. HEARING CONSERVATION TRAINING

2. +Protecting Employees from Hearing Hazards

3. Effects of Noise + Causes hearing loss + Amount of damage depends upon the intensity of the noise and duration of exposure + Noise-induced hearing loss can be temporary or permanent 1a

4. + Prolonged exposure generally causes permanent damage + Noise-induced permanent threshold shift is not reversible/cannot be medically treated 1b Effects of Noise

5. + Noise-induced hearing loss typically starts with hearing threshold shifts in the higher frequencies + The type of hearing loss can be identified and measured with audiometric examination 1c Effects of Noise

6. Noise Hazards + Noise is unwanted/unpleasant sound that may have a negative effect depending on: loudness/frequency duration of exposure how old/healthy person is 2a

7. + Sound is measured by: frequency intensity + Noise types include: wide band narrow band impulse 2b Noise Hazards

8. + Hearing protection must be provided when noise equals or exceeds an eight-hour time-weighted average of 85dB 2c Noise Hazards

9. + Sleeping disorders + Temporary or permanent hearing loss 2e Noise Hazards Can Cause

10. + Drowsiness and irritability + Inability to hear important instructions + High blood pressure, ulcers, headaches 2d

11. Control Measures + Isolate noisy machinery in a separate area + Place machinery on rubber mountings + Use sound-absorbing acoustical tiles 3a

12. + Arrange work schedules to reduce employee exposure to noise + Inform supervisors of unpleasant/unacceptable noise levels 3b Control Measures

13. Hearing Protection + Factors taken into account when selecting hearing protection devices include: noise hazards noise frequencies fit and comfort noise reduction rating 4a

14. Purpose/Procedure For Audiometric Testing + Checks a person’s hearing + Trained technician uses an audiometer to send sounds through headphones 5a

15. + Person being tested responds to the sounds when they are first heard + Chart records responses 5b Purpose/Procedure For Audiometric Testing

16. Hearing Protection Makes Common Sense + You are ultimately responsible for your own hearing + You have the most to lose if you suffer hearing loss + Make sure earplugs fit properly 6a

17. + Have an annual hearing test + Keep hearing protection devices in good operation 6b Hearing Protection Makes Common Sense

18. + Don’t use homemade hearing protection devices + Wear hearing protection devices at work as required 6c Hearing Protection Makes Common Sense