Hearing aids. Methods for measurement of electroacoustical characteristics of hearing aid equipment not entirely worn on the listener.
NORMA vydaná dňa 29.6.1984
Designation standards: BS 6083-3:1984
Note: NEPLATNÁ
Publication date standards: 29.6.1984
Approximate weight : 300 g (0.66 lbs)
Country: British technical standard
Kategória: Technické normy BS