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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
Woodworking machines--Single blade stroke circular sawing machines--Accuracy tests
WITHDRAWN published on 31.3.1989
Selected format:Symbols for indications appearing on woodworking machinery
WITHDRAWN published on 13.3.1989
Selected format:General rules of reliability for machine tool electrical components
WITHDRAWN published on 31.3.1989
Selected format:General rules of reliability for machine tool electrical components
WITHDRAWN published on 30.6.2008
Selected format:Circuit-breakers for overcurrent protection for household and similar installation
WITHDRAWN published on 23.3.1999
Selected format:Electrical accessories—Circuit-breakers for overcurrent protection for household and similar installation—Part 1:Circuit-breakers for a.c. operation
WITHDRAWN published on 29.7.2005
Selected format:Circuit-breakers for overcurrent protection for household and similar installation—Part 2:Circuit-breakers for a.c.and d.c.operation
WITHDRAWN published on 6.8.2003
Selected format:Circuit-breakers for overcurrent protection for household and similar installation—Part 2:Circuit-breakers for a.c.and d.c.operation
WITHDRAWN published on 30.12.2008
Selected format:Electrotechnical terminology of electrical accessoriescontrols and protectors
WITHDRAWN published on 31.3.1989
Selected format:Methods used to designate model of electrical accessories, controls and protectors
WITHDRAWN published on 1.1.1989
Selected format:Latest update: 2026-01-28 (Number of items: 2 257 539)
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