
Hearing aids. Magnetic field strength in audio-frequency induction loops for hearing aid purposes.
NORM herausgegeben am 15.11.1998
Designation standards: BS EN 60118-4:1998
Note: UNGÜLTIG
Publication date standards: 15.11.1998
The number of pages: 10
Approximate weight : 30 g (0.07 lbs)
Country: British technical standard
Kategorie: Technische Normen BS