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| Chinese National Standard List: Electroacoustic device |
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GB 11455-1989 Hearing aid equipment not entirely worn on the listener
Issued on: 1989-06-02 Price(USD): 45.0 |
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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 |
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GB/T 11452-1989 Guide to hearing aid standards
Issued on: 1989-06-02 Price(USD): 240.0 |
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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 |
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GB 6832-1986 Methods of measurement on headphones
Issued on: 1986-9-3 Price(USD): 210.0 |
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GB 3661-1983 Technical specification of measurement condenser microphones
Issued on: Price(USD): 260.0 |
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GB 3662-1983 Methods for determining electroacoustic characteristics of measurement condenser microphones
Issued on: Price(USD): 130.0 |
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