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Standards GB - Chinese national standards - Page 5604
Standards GB are Chinese national standards, which are issued by China's Standardization Administration Office (SAC).
Chinese national standards are used all over China commonly labeled as GB standards. They determine the united production requirements regarding product safety and quality .
GB standards are often modified or created according to the international standards of ISO, IEC or any other international level.
Although, they are largely harmonized, GB standards may differ from international standards .
Approximately 15% of all GB standards are obligatory and they can be identified according to the prefix GB, after which the code of the standards follows:
GB – Obligatory national standards
GB/T – Optional national standards
GB/Z – National steering technical document
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GB 11446.8-1989
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Test method for total and organic carbon in electronic grade water
WITHDRAWN published on 1.1.1989
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GB/T 11446.8-1997
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Test method for total organic carbon in electronic grade water
WITHDRAWN published on 1.9.1997
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GB 11446.9-1989
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Test method for particles in electronic grade water by instrument
WITHDRAWN published on 1.1.1989
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GB/T 11446.9-1997
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Test method for particles in electronic grade water by instrument
WITHDRAWN published on 1.9.1997
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GB 11448-1989
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Detail specification for electronic components electronic tube of type FC-306
WITHDRAWN published on 1.1.1989
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GB/T 11452-1989
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Guide to hearing aid standards
WITHDRAWN published on 4.7.1989
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GB/T 11453-1989
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Methods of measurement of performance characteristics of hearing aids under simulated in situ working conditions
WITHDRAWN published on 4.7.1989
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GB/T 11454-1989
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Magnetic field strength in audio-frequency induction loops for hearing aid purposes
WITHDRAWN published on 4.7.1989
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GB/T 11455-1989
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Hearing aid equipment not entirely worn on the listener
WITHDRAWN published on 4.7.1989
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GB 11456-1989
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WITHDRAWN published on 1.1.1989
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