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Standards GB - Chinese national standards - Page 9052
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/T 7616-1987
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Equivalence between binary notation symbols and the significant conditions of a two-condition code
WITHDRAWN published on 3.4.1987
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GB/T 7617-1987
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Power levels for data transmission overtelephone lines
WITHDRAWN published on 3.4.1987
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GB 762-1980
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Current ratings for high and low voltage electrical apparatus
WITHDRAWN published on 1.1.1980
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GB/T 762-1996
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Standard current
WITHDRAWN published on 31.3.1996
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GB/T 7627-1987
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Characteristics of distortion and error-rate measuring apparatus for data transmission
WITHDRAWN published on 3.4.1987
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GB/T 7628-1987
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Method for the determination of vitamin B1 in cereals
WITHDRAWN published on 4.3.1987
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GB/T 7628-2008
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Determination of vitamin B1 in cereals
WITHDRAWN published on 27.5.2008
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GB/T 7629-1987
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Method for the determination of vitamin B2 in cereals
WITHDRAWN published on 4.3.1987
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GB/T 7629-2008
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Determination of vitamin B2 in cereals
WITHDRAWN published on 27.5.2008
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GB 763-1990
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WITHDRAWN published on 1.1.1990
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