 |
Chinese Classification
Professional Classification
ICS Classification
Latest
Value-added Services
|
| Chinese National Standard List: Electroacoustic device |
| Title | Standard No. | Implemented On |
| Hearing aid equipment not entirely worn on the listener | GB 11455-1989 | 1990-4-1 |
| Methods of measurement of performance characteristics of hearing aids under simulated in situ working conditions | GB 11453-1989 | 1990-4-1 |
| Guide to hearing aid standards | GB/T 11452-1989 | 1990-4-1 |
| Specifications for the editing and production of prog-ramme source for subjective assessment of sound quali-ty of electro-acoustic products | GB/T 10240-1988 | 1989-7-1 |
| Methods of measurement on headphones | GB 6832-1986 | 1987-10-1 |
| Technical specification of measurement condenser microphones | GB 3661-1983 | 1984-3-1 |
| Methods for determining electroacoustic characteristics of measurement condenser microphones | GB 3662-1983 | 1984-3-1 |
| Tel: +86-10-8572 5655 | Fax: +86-10-8581 9515 Email: coc@codeofchina.com | |
| Copyright: Foryou Tech Co., Ltd. 2008-2040 |