HD 450.9-1987
Hearing Aids Part 9: Methods of Measurement of Characteristics of Hearing Aids with Bone Vibrator Output

Standard No.

HD 450.9-1987

Release Date

1987

Published By

European Committee for Electrotechnical Standardization（CENELEC）

Latest

HD 450.9-1987

HD 450.9-1987 history

• 1987 HD 450.9-1987 Hearing Aids Part 9: Methods of Measurement of Characteristics of Hearing Aids with Bone Vibrator Output