 |
Chinese Classification
Professional Classification
ICS Classification
Latest
Value-added Services
|
|
| Chinese National Standard List: Electroacoustic device |
|
GB 11455-1989 Hearing aid equipment not entirely worn on the listener
Issued on: 1989-06-02 Price(USD): 45.0 |
|
GB 11453-1989 Methods of measurement of performance characteristics of hearing aids under simulated in situ working conditions
Issued on: 1989-7-4 Price(USD): 120.0 |
|
GB/T 11452-1989 Guide to hearing aid standards
Issued on: 1989-06-02 Price(USD): 240.0 |
|
GB/T 10240-1988 Specifications for the editing and production of prog-ramme source for subjective assessment of sound quali-ty of electro-acoustic products
Issued on: 1988-12-30 Price(USD): 90.0 |
|
GB 6832-1986 Methods of measurement on headphones
Issued on: 1986-9-3 Price(USD): 210.0 |
|
GB 3661-1983 Technical specification of measurement condenser microphones
Issued on: Price(USD): 260.0 |
|
GB 3662-1983 Methods for determining electroacoustic characteristics of measurement condenser microphones
Issued on: Price(USD): 130.0 |
| Tel: +86-10-8572 5655 | Fax: +86-10-8581 9515 Email: coc@codeofchina.com | |
| Copyright: TransForyou Co., Ltd. 2008-2040 |