BS EN ISO 389-1:2018-TC

Tracked Changes. 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 25.2.2020

The information about the standard:

Designation standards: BS EN ISO 389-1:2018-TC
Publication date standards: 25.2.2020
The number of pages: 48
Approximate weight : 144 g (0.32 lbs)
Country: British technical standard
Kategorie: Technické normy BS