ISO 1999:1990 声学.职业性曝噪测定和噪声听力损伤估算

标准编号：ISO 1999:1990

中文名称：声学.职业性曝噪测定和噪声听力损伤估算

英文名称：Acoustics — Determination of occupational noise exposure and estimation of noise-induced hearing impairment

发布日期：1990-01

标准范围

规定了以a加权噪声级（dB）和正常工作周（40小时）内的暴露持续时间表示的这些数量的实际关系，以及预计因该暴露而获得25 dB或更高听力阈值的人员百分比，平均为500、1000和2000 Hz。

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.

标准预览图