Projekta Nr.EN 60318-3:1998
NosaukumsDescribes an acoustic coupler for loading supra-aural audiometric earphones as specified in ISO 389 with a specified acoustic impedance, when calibrating audiometers, in the frequency range of 125 Hz to 8 000 Hz.
Reģistrācijas numurs (WIID)50779
Darbības sfēraDescribes an acoustic coupler for loading supra-aural audiometric earphones as specified in ISO 389 with a specified acoustic impedance, when calibrating audiometers, in the frequency range of 125 Hz to 8 000 Hz.
StatussAtcelts
ICS grupa17.140.50