Attenuations from hearing protectors and the ABC classification system

Authors

  • A. Behar Ontario Hydro, Pickering, Ont., Canada

Keywords:

acoustic wave absorption, hearing, noise abatement, safety, attenuations, hearing protectors, ABC classification system, noise level, protected ear

Abstract

Evaluates the accuracy of the CSA ABC class system for rating hearing protectors. The noise level of the protected ear of twelve protectors (six Class A and six Class B) subjected to twelve noises were calculated. It was shown that there is large variation among sound levels from both protector classes as well as overlaps, resulting mostly in overprotection. It is recommended that the ABC system be changed to some other rating system used by the international community

Downloads

Published

1991-12-01

How to Cite

1.
Behar A. Attenuations from hearing protectors and the ABC classification system. Canadian Acoustics [Internet]. 1991 Dec. 1 [cited 2021 Oct. 19];19(5):17-22. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/701

Issue

Section

Technical Articles