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Standards GB - Chinese national standards - Page 9003
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 9521-1988
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(Detailed specifications of electronic components. 3DD325 silicon NPN. Environmental rated low frequency amplifying transistor (for certification))
WITHDRAWN published on 1.1.1988
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GB 9522-1988
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Detail specification for electronic components--Ambie-nt-rated transistor for type 3DG1815 silicon NPN for high frequency amplification
WITHDRAWN published on 1.1.1988
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GB 9523-1988
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Detail specification for electronic component--Silicon single phase bridge rectifier type for QL 62
WITHDRAWN published on 1.1.1988
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GB 9524-1988
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Detail specification for electronic component--Silicon switching diodes for types 2CK111 2CK112 and 2CK113
WITHDRAWN published on 1.1.1988
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GB 9525-1988
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Detail specification for electronic component--Silicon switching diodes for types 2CK111 2CK112 and 2CK113
WITHDRAWN published on 1.1.1988
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GB 9526-1988
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Detail specification for electronic component--Silicon turing variable capacitance diodes for types 2CC22 and 2CC27
WITHDRAWN published on 1.1.1988
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GB 9527-1988
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Detail specification for electronic component--Silicon turing variable capacitance diodes for types 2cc23 and 2cc28
WITHDRAWN published on 1.1.1988
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GB 9528-1988
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Detail specification for electronic component--Silicon frequency modulated variable capacitance diodes for types 2CC24 and 2CC29
WITHDRAWN published on 1.1.1988
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GB 9529-1988
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Detail specification for electronic component--Silicon frequency modulated variable capacitance diodes for types 2CC24 and 2CC29
WITHDRAWN published on 1.1.1988
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GB/T 9532-1988
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Designations for LiNbO3 LiTaO3 Bi12GeO20Bi12SiO20 piezoelectric crystals
WITHDRAWN published on 28.6.1988
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