Electroacoustics - Measurement of real-ear acoustical performance characteristics of hearing aids
NORM herausgegeben am 1.7.2016
Designation standards: STN EN 61669
Classification mark: 368860
Catalog number: 122800
Publication date standards: 1.7.2016
Approximate weight : 48 g (0.11 lbs)
Country: Slovak technical standard
Kategorie: Technische Normen STN