ISO 4869-1:1990
Acoustics; hearing protectors; part 1: subjective method for the measurement of sound attenuation
- Standard No.
- ISO 4869-1:1990
- Release Date
- 1990
- Published By
- International Organization for Standardization (ISO)
- Status
- Replace By
- ISO 4869-1:2018
- Latest
- ISO 4869-1:2018
- Scope
- Specifies a method for measuring sound attenuation at the threshold of hearing. The procedure is designed to yield values close to the maximum attenuation which are not normally attained under field conditions. The values reflect the attenuating characteristics only to the extent that users wear the device in the same manner as did the test subjects. Data are collected at low sound pressure levels but which are also representative of the values at higher sound pressure levels.
ISO 4869-1:1990 history
- 2018 ISO 4869-1:2018 Acoustics - Hearing protectors - Part 1: Subjective method for the measurement of sound attenuation
- 1990 ISO 4869-1:1990 Acoustics; hearing protectors; part 1: subjective method for the measurement of sound attenuation
