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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
Carrier--Determination of particle size by dry sieving method
WITHDRAWN published on 1.1.1988
Selected format:Pillar box
WITHDRAWN published on 1.1.1988
Selected format:Code for classification and type of highway pavement
WITHDRAWN published on 27.2.1989
Selected format:Code for classification and type of highway pavement
WITHDRAWN published on 8.1.2002
Selected format:Post and telegraph date-stamp
WITHDRAWN published on 1.1.1988
Selected format:Lead characters for post and telegrapg data-stamp
WITHDRAWN published on 1.1.1988
Selected format:Testing method for bonded abrasive products
WITHDRAWN published on 1.1.1988
Selected format:Universal ironworker for punch plate, bar and section shear--Accuracy
WITHDRAWN published on 1.1.1988
Selected format:Dead centre—Parameter
WITHDRAWN published on 11.5.1988
Selected format:Dead centre—Testing of the accuracy
WITHDRAWN published on 11.5.1988
Selected format:Latest update: 2025-12-26 (Number of items: 2 253 153)
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