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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
Control charts for averages and for ranges
WITHDRAWN published on 1.1.1983
Selected format:Control charts for medians and for ranges
WITHDRAWN published on 1.1.1983
Selected format:Control charts for individuals and for moving ranges
WITHDRAWN published on 1.1.1983
Selected format:Control charts for fraction defective
WITHDRAWN published on 1.1.1983
Selected format:Control charts for number of defectives
WITHDRAWN published on 1.1.1983
Selected format:Control charts for defects per unit
WITHDRAWN published on 1.1.1983
Selected format:Control charts for number of defects
WITHDRAWN published on 1.1.1983
Selected format:Programming language COBOL Introductory information
WITHDRAWN published on 4.8.1992
Selected format:Programming language COBOL Source text manipulation module
WITHDRAWN published on 4.8.1992
Selected format:Programming language COBOL Debug module
WITHDRAWN published on 4.8.1992
Selected format:Latest update: 2025-11-10 (Number of items: 2 243 715)
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