NEN-ISO 4869-1
Acoustics - Hearing protectors - Subjective method for the measurement of sound attenuation
active, Most Current
| Organization: | NEN |
| Publication Date: | 1 January 1997 |
| Status: | active |
| Page Count: | 12 |
| ICS Code (Head protective equipment): | 13.340.20 |
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.
Document History
NEN-ISO 4869-1
January 1, 1997
Acoustics - Hearing protectors - Subjective method for the measurement of sound attenuation
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...
February 1, 1993
Acoustics - Hearing protectors - Part 1: Subjective method for the measurement of sound attenuation
This International Standard specifies a subjective method for measuring sound attenuation of hearing protectors at the threshold of hearing. The method and procedures are designed to yield values...