NEN-EN-ISO 389-2
Acoustics - Reference zero for the calibration of audiometric equipment - Part 2: Reference equivalent threshold sound pressure levels for pure tones and insert earphones
active, Most Current
| Organization: | NEN |
| Publication Date: | 1 October 1996 |
| Status: | active |
| Page Count: | 18 |
| ICS Code (Noise with respect to human beings): | 13.140 |
scope:
Specifies levels supplementary to those specified in ISO 389:1991. Values given are applicable to insert earphones of type Etymotic Research ER-3A, coupled to the human ear by ear inserts of type ER-3-14.
Document History
NEN-EN-ISO 389-2
October 1, 1996
Acoustics - Reference zero for the calibration of audiometric equipment - Part 2: Reference equivalent threshold sound pressure levels for pure tones and insert earphones
Specifies levels supplementary to those specified in ISO 389:1991. Values given are applicable to insert earphones of type Etymotic Research ER-3A, coupled to the human ear by ear inserts of type...