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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
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WITHDRAWN published on 1.1.1986
Selected format:Verification of Brinell hardness testers
WITHDRAWN published on 29.5.1997
Selected format:-
WITHDRAWN published on 1.1.1986
Selected format:Calibration of standardized blocks to be used for Brinell hardness
WITHDRAWN published on 29.5.1997
Selected format:Axial load fatigue testing machines dynamic force calibration
WITHDRAWN published on 1.1.1986
Selected format:Slide glasses for microscopes
WITHDRAWN published on 1.1.1986
Selected format:Cover glasses for microscopes
WITHDRAWN published on 1.1.1986
Selected format:-
WITHDRAWN published on 1.1.1986
Selected format:Fertilizers and soil conditioners—Vocabulary
WITHDRAWN published on 24.6.1997
Selected format:Fertilizers and soil conditioners—Vocabulary
WITHDRAWN published on 29.8.2016
Selected format:Latest update: 2026-06-24 (Number of items: 2 284 377)
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