BS EN ISO 389-7:2019

Acoustics. Reference zero for the calibration of audiometric equipment. Reference threshold of hearing under free-field and diffuse-field listening conditions.

NORMA vydaná dňa 6.12.2019

The information about the standard:

Designation standards: BS EN ISO 389-7:2019
Publication date standards: 6.12.2019
The number of pages: 20
Approximate weight : 60 g (0.13 lbs)
Country: British technical standard
Kategória: Technické normy BS