A comparison of three methods for measuring the attenuation provided by insert-type hearing-protective devices
To effectively implement an occupational hearing conservation program, employers must know the amount of attenuation (noise reduction) provided by the hearing protective devices used by their employees. Currently standardized test methods, performed under laboratory conditions, cannot be easily impl...
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| Format: | Others |
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PDXScholar
1988
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| Online Access: | https://pdxscholar.library.pdx.edu/open_access_etds/3819 https://pdxscholar.library.pdx.edu/cgi/viewcontent.cgi?article=4828&context=open_access_etds |