Hearing aids. Methods for measurement of electroacoustical characteristics of hearing aid equipment not entirely worn on the listener.
NORMA vydána dne 30.6.1981
Designation standards: BS 6083-3:1981
Note: NEPLATNÁ
Publication date standards: 30.6.1981
Approximate weight : 300 g (0.66 lbs)
Country: British technical standard
Kategorie: Technické normy BS