Acoustics - Reference zero for the calibration of audiometric equipment - Part 1: Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones (ISO 389-1:1998)
STANDARD published on 1.9.2000
Designation standards: ČSN EN ISO 389-1
Classification mark: 011630
Catalog number: 59201
Note: WITHDRAWN
Publication date standards: 1.9.2000
The number of pages: 16
Approximate weight : 48 g (0.11 lbs)
Country: Czech technical standard
Category: Technical standards ČSN