Hearing Conservation Flashcards
Responsibilities of CO
Establish effective hearing conservation program
Responsibilities of Safety Officer
Liaison to the Industrial Hygiene Department
What does the Safety Officer maintain records of?
Noise hazardous areas
Noise hazardous equipment
Baseline and subsequent IH survey
Ensure the program is evaluated at least annually
Responsibilities of Industrial Hygiene Officer
Proper calibration of sound level meter
Annually, certify audiometric testing booths
Responsibilities of Division Officer
Ensures proper labeling of spaces and equip
Ensures proper training
Sends designated personnel for audiograms
Responsibilities of the MDR
Training for all hands during INDOC
Consult IH survey to determine type of ear pro
Perform fit testing
Maintain roster of current HCP personnel
Schedules personnel for audiometric testing
Reports TS to Safety Officer
What is reported to Safety Officer when a threshold shift is noted?
Name
Rate/Rank
Work Center
Time onboard
Responsibilities of All Hands
Comply with noise hazard labels and wear ear pro
Undergo annual audiometric testing
Hazardous Noise Warning Decal
NAVMED 6260/2 OR NAVMED 6260/2A
8” x 10” 2” x 2”
Where are the Hazardous Noise Signs posted?
Outside doors/hatches
Inside doors leading to weather deck
What is used for noise abatement?
Reduction of the noise at source
Modify equipment to reduce noise
Accomplished during ship design, construction and testing
Reference Audiogram
DD-2215
Monitoring Audiogram
DD-2216
Noise levels for hearing protection
Less than 84 dBA - No protection
85 dBA - 96 dBA - Single protection
Greater than 96 dBA - Double protection
Who takes noise measurements?
Industrial Hygienist and Occupational Audiologist
How often are noise surveys done?
resurvey 30 days after any significant modifications
How long are noise measurements kept for?
50 years, by the measuring facility
Are hearing tests done at MEPS used for reference?
NO
Definition of Significant Threshold Shift
10 dB or more at 2000, 3000, 4000 Hz in either ear
STS can be positive and negative
When do you retest audiogram?
Same day for negative STS
14 hours noise free for positive STS
What do you do if first retest showed no STS
continue regular monitoring
What do you do if findings are abnormal at second test?
Record on SF 600
Look in ears
Third audiogram
Referral to audio if STS
How soon do you notify supervisor of STS
21 Days
Navy Injury and Occupational Illnesses
OPNAV 5102/7
Noise Free Audiogram
Auditory rest - 14 hours
Engineering controls
Primary means of protection
Noise barriers
reduce noise level of machinery
Administrative Control
Limiting time exposure
Types of Noise Abatement
Engineering
Administrative
Substitution
Personal Hearing Devices
Personal Hearing Protective Devices
Ear plugs
Straightaway Muffs
Circumaural Muff
Types of ear plugs
disposable
single flange
double flange
triple flange
When do personnel receive training?
Prior to working in noise
Annually
How do you size non-disposable hearing protection ?
Conducted by medically trained personnel
Well lighted visual inspection of ear canal
Each ear canal will be sized separately
Hearing Testing and Medical Surveillance
Reference Hearing Test
Monitoring Hearing Test
Termination Hearing Test
