Recent discussions of the propossd EEC Directive on the protection of workers from exposure to noise (1) have considered the need for an overriding limit for exposure to "instantaneous" high levels of noise and how these are to be measured.Sound level meters (SLMs) which conform to EC 651 (2) have me detection circuits with SLOW (1 s) or FAST (125 me) or IMPULSE (35 ms rise timeV 1.5 s decay time) time constants.They may optionally also have a PEAK response, typically 30 to 50 us time constant.
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PRICE et al. (2024) studied this question.
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