Skip to main content
Back

ISO 1999:1990

Acoustics -- Determination of occupational noise exposure and estimation of noise-induced hearing impairment

General information

Withdrawn from 23.09.2013
Directives or regulations
None

Standard history

Status
Date
Type
Name
23.09.2013
Main
Main
ISO 1999:1975
Prescribes a practical relation for these quanitities expressed as A-weighted noise level in dB and duration of exposure within a normal working week (40 hours) and the percentage of personnel that is to be expected to obtain a raised hearing threshold of 25 dB or more as a result of this exposure, averaged from 500, 1000 and 2000 Hz.

Required fields are indicated with *

*
*
*
PDF
133.39 € incl tax
Paper
133.39 € incl tax
Standard monitoring