Damage Risk Criteria

A damage-risk criterion specifies the maximum allowable exposure to which a person can be exposed if risk of hearing impairment is to be avoided. The American Academy of Ophthalmology and Otolaryngology defines hearing impairment as an average HTL in excess of 25 dB (ANSI-1969) at 500, 1000, and 2000 Hz. This limit is called the low fence. Total impairment occurs when the

Name ERIC HERRING ID No. 44-50-FGT Age 23 Remarks SPENT WEEKEND AS JUDGE AT "BATTLE OF HARD ROCK BANDS"

Date 7-11-83 Time 0910 Operator C. NEMO Location BOOTH 33 Audiometer B & K 1800

Name ERIC HERRING ID No. 44-50-FGT Age 23 Remarks SPENT WEEKEND AS JUDGE AT "BATTLE OF HARD ROCK BANDS"

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