NA 022
DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE
DIN EN 60645-5 [CURRENT] references following documents:
| Document number | Edition | Title |
|---|---|---|
| ISO 389-2 | 1994-07 | Acoustics - Reference zero for the calibration of audiometric equipment - Part 2: Reference equivalent threshold sound pressure levels for pure tones and insert earphones More |
