-
-
Available Formats
- Options
- Availability
- Priced From ( in USD )
-
Available Formats
-
- Immediate download
- $166.00
- Add to Cart
-
- Printed Edition
- Ships in 1-2 business days
- $166.00
- Add to Cart
-
- Printed Edition + PDF
- Immediate download
- $259.00
- Add to Cart
Customers Who Bought This Also Bought
-
ISO/TR 11690-3:1997
Priced From $166.00 -
ISO 389-7:2019
Priced From $81.00 -
ISO 8253-3:2022
Priced From $223.00 -
ISO 226:2023
Priced From $166.00
About This Item
Full 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.