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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
Magnesia-alumina refractory bricks for open-hearth furnaces
WITHDRAWN published on 1.1.1987
Selected format:General principles for risk assessment of consumer product safety
WITHDRAWN published on 30.12.2008
Selected format:Built-in thermal protectors for electrical machines of household and similar use
WITHDRAWN published on 30.12.2008
Selected format:Household and similar electrical appliances—After-sales service—Part 1:General requirement
WITHDRAWN published on 30.12.2008
Selected format:Electric bathroom heater(Yuba)
WITHDRAWN published on 30.12.2008
Selected format:Magnesia-chrome refractory bricks
WITHDRAWN published on 1.1.1987
Selected format:Numeral information calendars
WITHDRAWN published on 30.12.2008
Selected format:Liquid crystal digital quartz stopwatches
WITHDRAWN published on 30.12.2008
Selected format:Liquid crystal displaying quartz clocks
WITHDRAWN published on 30.12.2008
Selected format:Dimensions of refractory bricks for blast furnaces and hot blast stoves
WITHDRAWN published on 1.1.1980
Selected format:Latest update: 2026-06-09 (Number of items: 2 281 484)
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