
MEASUREMENTS OF THE ELECTRO-ACOUSTICAL CHARACTERISTICS OF HEARING AIDS
NORMA vydána dne 15.12.1981
Designation standards: UNE 20603:1981
Note: NEPLATNÁ
Publication date standards: 15.12.1981
The number of pages: 20
Approximate weight : 60 g (0.13 lbs)
Country: Spanish technical standard
Kategorie: Technické normy UNE