ISO 1999:1990
$36.40
Acoustics — Determination of occupational noise exposure and estimation of noise-induced hearing impairment
| Published By | Publication Date | Number of Pages |
| ISO | 1990-01 | 22 |
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.
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