ACOUSTICS. AUDIOMETRIC TEST METHODS. PART 1: BASIC PURE TONE AIR AND BONE CONDUCTION THRESHOLD AUDIOMETRY. (ISO 8253-1:1989).
NORMA vydána dne 20.11.1998
Designation standards: UNE-EN ISO 8253-1:1998
Note: NEPLATNÁ
Publication date standards: 20.11.1998
The number of pages: 23
Approximate weight : 69 g (0.15 lbs)
Country: Spanish technical standard
Kategorie: Technické normy UNE