ISO 1999:2013 PDF

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Acoustics — Estimation of noise-induced hearing loss

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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.

Edition

2013

Published Date

2013

Published By

International Standardization Organisation

Page Count

23

ISO 1999:2013 PDF
$132.00 Original price was: $132.00.$102.96Current price is: $102.96.