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Chinese National Standard Category: Electroacoustic device

English Title: Hearing aid equipment not entirely worn on the listener
Chinese Title: 不完全佩戴在听者身上的助听设备
Standard No.: GB 11455-1989
Category No.: L31
Issued by: State Technical Supervision Bureau
Issued on: 1989-06-02
Implemented on: 1990-4-1
Status: valid
Superseded by:
Superseded on:
Abolished on:
Superseding:
Word Count:1500 words
Similar Standards: GB 11455-1989   GB 11453-1989   GB/T 11452-1989   GB/T 10240-1988   GB 6832-1986   GB 3661-1983   GB 3662-1983  
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