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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
Rubber test mixesPreparationmixing and vulcanizationEquipment and procedures
Standard published on 14.3.2006
Selected format:General rules for infrared analysis
Standard published on 4.6.2019
Selected format:General rules for mass spectrometric analysis
Standard published on 31.3.2020
Selected format:Method for determination of pH value of wood
Standard published on 23.2.2009
Selected format:Analogue quartz watches
Standard published on 31.10.2025
Selected format:Analogue quartz clocks
Standard published on 24.2.2016
Selected format:Chemical reagent - General method for the measurement of colour
Standard published on 3.11.2006
Selected format:Fire extinguishing agent of bromotrifluoromethane
Standard published on 3.6.1985
Selected format:Industrial liquid carbon dioxide
Standard published on 1.8.2025
Selected format:Test method for preparation and internal pressure testing of filament-wound pressure vessels
Standard published on 18.5.2005
Selected format:Latest update: 2026-06-24 (Number of items: 2 284 377)
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