ISO 1999:1990 PDF
Acoustics — Determination of occupational noise exposure and estimation of noise-induced hearing impairment
Название (английский):
ISO 1999:1990
Acoustics — Determination of occupational noise exposure and estimation of noise-induced hearing impairment
- Статус документа:
- Отменён
- Формат:
- Электронный (PDF)
- Количество страниц:
- 22
- Дата публикации:
- 18 января 1990 г.
- Издание:
- ISO IS 1999 edition 2 version 1
- ICS:
- 13.140
Описание (английский):
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.
Технические детали
- Технический комитет
- ISO/TC 43/SC 1 - Noise
- SKU
- ISO 1999:1990