Abstract
References
1.Hearing Measurement , Chapter 8, Industrial Noise Manual , 2nd Edition , 1965 , American Industrial Hygiene Association , 14125 Prevost Street, Detroit, Michigan 48227.
2.Guide for Conservation of Hearing in Noise , Revised 1964 , AAOO, Research Center of the Subcommittee on Noise , 3819 Maple Avenue, Dallas, Texas 75219.
3.Guide for Industrial Audiometric Technicians , 304–674, Safety Media Director, Employers Insurance of Wausau , Wausau, Wisconsin 54401.