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.
Status: WithdrawnPublication date: 1990-01
Edition: 2Number of pages: 17
Technical Committee: ISO/TC 43/SC 1 Noise
- ICS :
- 13.140 Noise with respect to human beings
ISO 1999:1990Stage: 95.99
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