GB/T 11453-1989

Methods of measurement of performance characteristics of hearing aids under simulated in situ working conditions

NORM herausgegeben am 4.7.1989

English, Chinesisch -
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The information about the standard:

Designation standards: GB/T 11453-1989
Note: UNGÜLTIG
Publication date standards: 4.7.1989
Country: Chinese technical standard
Kategorie: Technische Normen GB