Today's increased interest in factory noise is partly created by the fact that exposure to sound under certain conditions may cause hearing impairment. This interest has been reflected in both management and labor circles. The seriousness of the problem is evidenced by a sudden increase in the number of claims filed for industrial hearing loss, presumably caused by exposure to high intensity sound. Unfortunately, major uncertainties exist, making the establishment of standardized tests and measurements difficult. Allison Chalmers Manufacturing Company and competent medical authorities have done a great deal of valuable preliminary study, making it possible to set tentative standards and chart a course for programs which ultimately will control the noise problem.
W. F. Scholtz, Combating the Traumatic Effects of Industrial Noise, 7 Clev.-Marshall L. Rev. 260 (1958)