Acoustics - Reference zero for the calibration of audiometric equipment - Part 7: Reference threshold of hearing under free-field and diffuse-field listening conditions (ISO 389-7:2005)
NORMA vydaná dňa 15.2.2006
Designation standards: UNE-EN ISO 389-7:2006
Note: NEPLATNÁ
Publication date standards: 15.2.2006
The number of pages: 17
Approximate weight : 51 g (0.11 lbs)
Country: Spanish technical standard
Kategória: Technické normy UNE