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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WITHDRAWN published on 1.1.1977
Selected format:Slots with round end and slots with square end plate screens
WITHDRAWN published on 14.12.1990
Selected format:Test method for stress relaxation of gaskets for pipe flanges
WITHDRAWN published on 14.12.1990
Selected format:Test method for compressibility and recovery of gaskets for pipe flanges
WITHDRAWN published on 14.12.1990
Selected format:Modular technical requirements for protective footwear
WITHDRAWN published on 26.12.1990
Selected format:The general specifications for protective gloves and mittens
WITHDRAWN published on 26.12.1990
Selected format:General requirements for protective gloves
WITHDRAWN published on 12.1.2006
Selected format:Protective gloves—General requirements and test methods
WITHDRAWN published on 1.4.2009
Selected format:Technical requirements of fabric and bag for bag filter
WITHDRAWN published on 1.1.1990
Selected format:Hard fibreboard—Terms and classfication
WITHDRAWN published on 26.12.1990
Selected format:Latest update: 2026-04-05 (Number of items: 2 271 011)
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