Instructional requirements for using the HML and NRR methods for estimating protected exposure levels under hearing protectors
A study was conducted to investigate the effectiveness of different instructional tools for teaching individuals to calculate a protected hearing level given A- or C-weighted sound levels, and using the NRR and HML methods. Three instructional tools were evaluated: 1) outline instructions, 2) tabula...
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| Format: | Others |
| Language: | en |
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Virginia Tech
2014
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| Online Access: | http://hdl.handle.net/10919/46415 http://scholar.lib.vt.edu/theses/available/etd-12232009-020645/ |