Standards GB - Chinese national standards - Page 6030

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GB/T 14397-1993 WITHDRAWN

Information processing—Start-stop transmission signal quality at DTE/DCE interfaces

WITHDRAWN published on 11.5.1993

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GB/T 14398-1993 WITHDRAWN

Data communication—Arrangements for DTE to DTE physical connection using V.24 and X.24 interchange circuits

WITHDRAWN published on 11.5.1993

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GB/T 14399-1993 WITHDRAWN

Information processing systems—Data communication—High-level data link control procedures—Description of the X.25 LAPB-compatible DTE data link procedures

WITHDRAWN published on 11.5.1993

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