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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
Steel and iron—Determination of hydrogen content—Inert gas impulse fusion heat conductivity method
WITHDRAWN published on 11.9.2007
Selected format:Methods for chemical analysis of iron,steel and alloy The chrom azurol S photometric method for the determination of aluminium content
WITHDRAWN published on 11.4.2000
Selected format:Iron, steel and alloy - Determination of aluminium content - Chrom azurol S photometric method
WITHDRAWN published on 13.5.2008
Selected format:(The parts and units of jigs and fixtures. Adjustable support)
WITHDRAWN published on 1.1.1991
Selected format:Dried rosemary
WITHDRAWN published on 1.8.2008
Selected format:Dried oregano
WITHDRAWN published on 1.8.2008
Selected format:Celery seed
WITHDRAWN published on 1.8.2008
Selected format:Dried sweet basil
WITHDRAWN published on 1.8.2008
Selected format:Cardamom—Part 1:Whole capsules
WITHDRAWN published on 1.8.2008
Selected format:Cardamom—Part 2:Seeds
WITHDRAWN published on 1.8.2008
Selected format:Latest update: 2026-04-17 (Number of items: 2 274 270)
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