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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
Technical requirements for fire working of sea going transport ships
WITHDRAWN published on 17.2.1992
Selected format:Test method for measuring flat length on slices of electronic materials
WITHDRAWN published on 19.2.1992
Selected format:Method for measuring crystallographic orientation of flats on single crystal silicon slices and wafers by X-ray techniques
WITHDRAWN published on 19.2.1992
Selected format:Practice for conversion between resistivity and dopant density for boron-doped and phosphorus-doped silicon
WITHDRAWN published on 19.2.1992
Selected format:Metallic powder—Determination of the specific surface area—Method of nitrogen adsorption
WITHDRAWN published on 19.2.1992
Selected format:Classification and granding directives for restaurants and hotels
WITHDRAWN published on 19.5.2000
Selected format:The vehicle mark for road transportation dangerous goods
WITHDRAWN published on 22.2.1992
Selected format:The vehicle mark for road transportation dangerous goods
WITHDRAWN published on 22.4.2005
Selected format:Guide for sampling inspection
WITHDRAWN published on 24.2.1992
Selected format:Letter symbols to be used in electrical technology—Symbols for quantities to be used for rotating electrical machines
WITHDRAWN published on 22.2.1992
Selected format:Latest update: 2026-04-19 (Number of items: 2 274 482)
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