GB/T 7582-1987

Acoustics—Threshold of hearing by air conduction as a function of age and sex for otologically normal persons

NORM herausgegeben am 27.3.1987

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The information about the standard:

Designation standards: GB/T 7582-1987
Note: UNGÜLTIG
Publication date standards: 27.3.1987
Country: Chinese technical standard
Kategorie: Technische Normen GB