Electroacoustics. Hearing aids. Induction loop systems for hearing aid purposes. Magnetic field strength.
NORMA vydána dne 31.1.2007
Designation standards: BS EN 60118-4:2006
Note: NEPLATNÁ
Publication date standards: 31.1.2007
The number of pages: 44
Approximate weight : 132 g (0.29 lbs)
Country: British technical standard
Kategorie: Technické normy BS