Projekta Nr.HD 450.4 S1:1984
NosaukumsThis standard applies to audio-frequency induction loop systems producing an alternating magnetic field and intended to provide an input signal for hearing aids operating with an induction pick-up coil
Reģistrācijas numurs (WIID)49730
Darbības sfēraThis standard applies to audio-frequency induction loop systems producing an alternating magnetic field and intended to provide an input signal for hearing aids operating with an induction pick-up coil
StatussAtcelts
ICS grupaNav uzstādīts