NA 022

DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE

DIN EN ISO 389-3 [CURRENT] references following documents:

Document number Edition Title
ISO 389-8 2004-05 Acoustics - Reference zero for the calibration of audiometric equipment - Part 8: Reference equivalent threshold sound pressure levels for pure tones and circumaural earphones More 
ISO 8253-1 2010-11 Acoustics - Audiometric test methods - Part 1: Pure-tone air and bone conduction audiometry More