NEN ISO 1999 : 2016
Current
The latest, up-to-date edition.
ACOUSTICS - ESTIMATION OF NOISE-INDUCED HEARING LOSS
01-12-2013
Defines a method for calculating the expected noise-induced permanent threshold shift in the hearing threshold levels of adult populations due to various levels and durations of noise exposure. Also provides the basis for calculating hearing disability according to various formulae when the hearing threshold levels at commonly measured audiometric frequencies, or combinations of such frequencies, exceed a certain value.
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