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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
Periodic inspection and evaluation of liquefied petroleum gas and liquefied dimethyl ether steel gas cylinders
Execute Date: february 2027
Standard published on 30.7.2026
Selected format:Special threads for gas cylinders
Standard published on 30.12.2011
Selected format:
Special threads for gas cylinder
Execute Date: february 2027
Standard published on 30.7.2026
Selected format:Special thread gauges for gas cylinders
Standard published on 30.12.2011
Selected format:
Special threads gauges for gas cylinders
Execute Date: february 2027
Standard published on 30.7.2026
Selected format:Fusible plug device for gas cylinders
Standard published on 20.7.2011
Selected format:Camera shutters—Time measurement
Standard published on 7.9.2023
Selected format:Knurled thumb screws
Standard published on 24.6.1988
Selected format:Metal-enclosed bus
Standard published on 3.4.2000
Selected format:Knurled screws
Standard published on 24.6.1988
Selected format:Latest update: 2026-10-09 (Number of items: 2 304 581)
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