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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
Test method for flammability of cellular plastic - Horizonal burning method
Standard published on 4.8.2008
Selected format:Plastic—Test method for flammability of rigid cellular plastic—Virtical burning method
Standard published on 30.12.2022
Selected format:Periodic inspection and evaluation of liquefied petroleum steel gas cylinders
Standard published on 9.3.2022
Selected format:Special threads for gas cylinders
Standard published on 30.12.2011
Selected format:Special thread gauges for gas cylinders
Standard published on 30.12.2011
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: 2026-06-12 (Number of items: 2 281 969)
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