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Standards GB - Chinese national standards - Page 6087
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 14235.9-1993
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Testing method for thermal stability of pattern materials in investment casting
WITHDRAWN published on 4.3.1993
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GB/T 14236-1993
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Specifications of equipement for video and pulse system of TV centre
WITHDRAWN published on 13.3.1993
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GB/T 14237-1993
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Manufacturer""s declaration of export product conformity with standards
WITHDRAWN published on 17.3.1993
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GB/T 14238-1993
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Electrical properties for line equipment used on cable carrier systems
WITHDRAWN published on 10.3.1993
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GB/T 14239-1993
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Specifications for basic frequenceis of carrier supply systems
WITHDRAWN published on 10.3.1993
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GB 1424-1978
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WITHDRAWN published on 1.1.1978
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GB/T 14240-1993
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Specification of SHF 12-channel carrier systems and equipments for open-wire pair
WITHDRAWN published on 10.3.1993
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GB/T 14242-1993
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64×64 Dot matrix Heiti font set and data set of Chinese ideograms for information interchange
WITHDRAWN published on 16.3.1993
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GB/T 14243-1993
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64×64 Dot matrix Kaiti font set and data set of Chinese ideograms for information interchange
WITHDRAWN published on 16.3.1993
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GB/T 14244-1993
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64×64 Dot matrix Fangsongti font set and data set of Chinese ideograms for information interchange
WITHDRAWN published on 16.3.1993
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