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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
Machine tools--Lathe tool posts--Overall internal height
WITHDRAWN published on 29.6.1985
Selected format:Double-pitch precision roller chains and sprockets for transmission and conveyors
WITHDRAWN published on 11.10.1999
Selected format:Rubber, vulcanized--The general requirements for the physical test method
WITHDRAWN published on 1.1.1983
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WITHDRAWN published on 1.1.1985
Selected format:-
WITHDRAWN published on 1.1.1985
Selected format:Data processing—Vocabulary—Part 13:computer graphics
WITHDRAWN published on 10.12.1988
Selected format:Data processing—Vocabulary—Section 14:Reliability, maintenance and availability
WITHDRAWN published on 30.7.1985
Selected format:Data processing—Vocabulary—Section 15:Programming languages
WITHDRAWN published on 30.7.1986
Selected format:Data processing—Vocabulary—Section 16:information theory
WITHDRAWN published on 30.7.1986
Selected format:Data processing—Vocabulary—Section 18:Distributed data processing
WITHDRAWN published on 7.1.1993
Selected format:Latest update: 2026-06-11 (Number of items: 2 281 927)
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