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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
Programming language COBOL Inter-program communication module
WITHDRAWN published on 4.8.1992
Selected format:Programming language COBOL Communication module
WITHDRAWN published on 4.8.1992
Selected format:Programming language COBOL Nucleus module
WITHDRAWN published on 4.8.1992
Selected format:-
WITHDRAWN published on 1.1.1983
Selected format:Programming language COBOL Sequential I-O module
WITHDRAWN published on 4.8.1992
Selected format:Programming language COBOL Relative I-O module
WITHDRAWN published on 4.8.1992
Selected format:Programming language COBOL Indexed I-O module
WITHDRAWN published on 4.8.1992
Selected format:Programming language COBOL Sort-merge module
WITHDRAWN published on 4.8.1992
Selected format:Programming language COBOL Report writer module
WITHDRAWN published on 4.8.1992
Selected format:Programming language COBOL Segmentation module
WITHDRAWN published on 4.8.1992
Selected format:Latest update: 2025-11-10 (Number of items: 2 243 715)
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