Abstract
References
1.Division of Industrial Safety, State of California , Title 8 Article 55: Noise Control Safety Orders , November 1962 .
2.
Carver
W. P.
, “Hearing Conservation: It's Needed More Than Ever,” Safety Maintenance , 125 : 48 –50 , April 1963 .
3.
Rosenblith
Walter A.
, “Effects of Noise on Man: Problems for Study,” Noise Control , Vol. 1 , July 1955 .
4.Guide for Conservation of Hearing in Noise , American Academy of Ophthalmology and Otolaryngology , 1957
5.American Standards Acoustical Terminology , A.S.A., Inc. , May 25, 1960