ISO 1999:2013
ISO 1999:2013 Acoustics – Estimation of noise-induced hearing loss
CDN $233.00
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.
Edition
3
Published Date
2013-09-23
Status
PUBLISHED
Pages
23
Language
English
Format
Secure PDF
Secure – PDF details
- Save your file locally or view it via a web viewer
- Viewing permissions are restricted exclusively to the purchaser
- Device limits - 3
- Printing – Enabled only to print (1) copy
See more about our Environmental Commitment
Abstract
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.
Previous Editions
Can’t find what you are looking for?
Please contact us at:
Related Documents
-
ISO 23975:2025 Traditional Chinese medicine – Priority list of single herbal medicines for developing standards
CDN $390.00 Add to cart -
ISO 21120:2025 Machinery for forestry – Forestry mulching equipment – Terms, definitions and commercial specifications
CDN $173.00 Add to cart -
ISO 20560:2024 Safety information for the content of piping systems and tanks – Part 1: Piping systems
CDN $233.00 Add to cart -
ISO 16972:2020 Respiratory protective devices – Vocabulary and graphical symbols
CDN $76.00 Add to cart
