The ANSI standard S12. 68-2007 method of estimating effective a-weighted sound pressure levels when hearing protectors are worn: A canadian perspective

  • Jérémie Voix Sonomax Hearing Healthcare Inc., Montréal, QC H4P 2E2, Canada
  • Alberto Behar Department of Electrical and Computer Engineering, University of Toronto, 164 College Street, Toronto, ON M5S 3G4, Canada
  • Willy Wong Department of Electrical and Computer Engineering, University of Toronto, 164 College Street, Toronto, ON M5S 3G4, Canada
Keywords: Acoustic variables measurement, Acoustic wave transmission, Ultrasonics, Ansi standards, Attenuation datum, Comprehensive analysis, Field validations, Hearing protectors, Practical, Protective devices, Sound attenuations, Sound pressure levels, Statistical comparisons

Abstract

The Canadian ANSI standard S12.68-2007 method has been developed as a method of estimating effective A-weighted sound pressure levels after wearing hearing protective devices (HPD). The two percentile values would represent the sound attenuation that most individually trained users to achieve or exceed and that a few motivated proficient users to achieve or exceed. The Canadian workplaces of the NOISH 100 spectrum is used and a comprehensive analysis is conducted by Berger and Gauger. A field validation of Canadian workplace is required and would consist in the statistical comparison of field attenuation data. The developments of ANSI standard S12.68-2007 method provides 3 different practical tools to estimate from laboratory data the attenuation that user achieve in the field. The use and reference of ANSI standard S12.68-2007 method by the Canadian standards could be considered, after successful conduction of validation.
Published
2008-09-01
How to Cite
1.
Voix J, Behar A, Wong W. The ANSI standard S12. 68-2007 method of estimating effective a-weighted sound pressure levels when hearing protectors are worn: A canadian perspective. Canadian Acoustics [Internet]. 2008Sep.1 [cited 2019Aug.19];36(3):94-5. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/2054
Section
Proceedings of the Acoustics Week in Canada