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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
Plastics piping systems for hot and cold water installations—Polyethylene of raised temperature resistance(PE-RT)—Part 3:Fittings
WITHDRAWN published on 5.11.2012
Selected format:Rolling bearings--Self-aligning roller bearings--Boundary dimensions
WITHDRAWN published on 1.1.1987
Selected format:Rolling bearings—Self-aligning roller bearings—Boundary dimensions
WITHDRAWN published on 27.12.1994
Selected format:Directives for risk management of consumer products safety
WITHDRAWN published on 5.11.2012
Selected format:Railway applications—Rolling stock—Testing of rolling stock on completion of construction and before entry into service
WITHDRAWN published on 5.11.2012
Selected format:Railway applications—Compatibility between rolling stock and train detection systems—Part 3:Compatibility with axle counters
WITHDRAWN published on 29.9.2017
Selected format:Railway applications—Communication,signaling and processing systems—Software for railway control and protection systems
WITHDRAWN published on 5.11.2012
Selected format:Technical requirements for silicon metal
WITHDRAWN published on 5.10.1991
Selected format:Silicon metal
WITHDRAWN published on 31.3.2008
Selected format:Silicon metal
WITHDRAWN published on 5.12.2014
Selected format:Latest update: 2026-04-10 (Number of items: 2 271 455)
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