BS EN ISO 389-1:2018

Acoustics. Reference zero for the calibration of audiometric equipment. Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones.

NORMA vydána dne 2.3.2018

The information about the standard:

Designation standards: BS EN ISO 389-1:2018
Publication date standards: 2.3.2018
The number of pages: 18
Approximate weight : 54 g (0.12 lbs)
Country: British technical standard
Kategorie: Technické normy BS