GB/T 7614-1987

An artificial ear of wide band type for the calibration of earphones used in audiometry

NORM herausgegeben am 2.4.1987

The information about the standard:

Designation standards: GB/T 7614-1987
Note: UNGÜLTIG
Publication date standards: 2.4.1987
Country: Chinese technical standard
Kategorie: Technische Normen GB