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Norm
ISO 1999:1990
Ausgabedatum: 1990 01 18
Acoustics — Determination of occupational noise exposure and estimation of noise-induced hearing impairment
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 p...
Weiterlesen
ZURÜCKGEZOGEN
: 2013 09 23
Herausgeber:
International Organization for Standardization
Format:
Digital | 17 Seiten
Sprache:
Englisch
Aktuell Gültig:
ICS
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.
ISO 1999:1990
1990 01 18
Acoustics — Determination of occupational noise exposure and estimation of noise-induced hearing imp...
Norm
↖
ISO 1999:1975
1975 08 01
Acoustics — Assessment of occupational noise exposure for hearing conservation purposes
Norm
ISO/R 1999:1971
1971 01 15
Acoustics — Assessment of occupational noise exposure for hearing conservation purposes
Technische Regel