ISO 1999:2013

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Acoustics — Estimation of noise-induced hearing loss

Published By	Publication Date	Number of Pages
ISO	2013-10	30

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Categories: 13.140 - Noise with respect to human beings, ISO

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Description

ISO 1999:2013 specifies 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; it 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.

The measure of exposure to noise for a population at risk is the noise exposure level normalized to a nominal 8 h working day, LEX,8h, for a given number of years of exposure. ISO 1999:2013 applies to noise at frequencies less than approximately 10 kHz which is steady, intermittent, fluctuating, irregular. Use of ISO 1999:2013 for sound pressures exceeding 200 Pa (140 dB relative to 20 µPa) is recognized as extrapolation.

Additional information

Published Code	ISO
Published By	International Organization for Standardization
Publication Date	2013-10
Pages Count	30
Language	English
Edition	3
File Size	471.0 KB
ICS Codes	13.140 - Noise with respect to human beings

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ISO 1999:2013

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