GB/T 11453-1989

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

NORMA vydaná dňa 4.7.1989

Anglicky a čínsky -
Elektronické PDF (405.70 EUR)

The information about the standard:

Designation standards: GB/T 11453-1989
Note: NEPLATNÁ
Publication date standards: 4.7.1989
Country: Chinese technical standard
Kategória: Technické normy GB