A comparison of metrics for impulse noise exposure – Analysis of noise data from small calibre weapons

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Authors
  1. Nakashima, A.
Corporate Authors
Defence Research and Development Canada, Toronto Research Centre , Toronto ON (CAN)
Abstract
A previous analysis of the Department of National Defence (DND) training safety document concluded that the recommendations for hearing conservation during weapons training are outdated. Current impulse noise metrics being used by the United States (MIL-STD 1474E) and France (DTAT, 1983) were analyzed by way of literature review and feasibility assessment using weapon noise recordings from in-service weapons. The noise exposures for the shooter and potential observers, with and without the use of hearing protection devices, were considered in the analysis. Based on the critical reviews of the metrics from the literature and the current feasibility assessment, it is recommended that an equivalent energy approach (LAeq8hr) be implemented for the assessment of noise exposure from small calibre weapons. Large calibre weapons and blasts were not considered in the current analysis and should be further investigated.

Il y a un résumé en français ici.

Keywords
impulse noise;hearing conservation
Report Number
DRDC-RDDC-2015-R243 — Scientific Report
Date of publication
01 Nov 2015
Number of Pages
52
DSTKIM No
CA041809
CANDIS No
802859
Format(s):
Electronic Document(PDF)

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