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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
General purpose screw threads--Diameters and pitches
WITHDRAWN published on 14.3.1981
Selected format:-
WITHDRAWN published on 1.1.1983
Selected format:Method for determination of the annual rings width and latewood rate of wood
WITHDRAWN published on 3.5.1991
Selected format:Method for determination of the annual rings width and latewood rate of wood
WITHDRAWN published on 23.2.2009
Selected format:Hygienic standard for roasted nuts
WITHDRAWN published on 24.9.2003
Selected format:Hygienic standard for raw milk
WITHDRAWN published on 24.9.2003
Selected format:Hygienic standard for yoghurt
WITHDRAWN published on 24.9.2003
Selected format:National food safety standard Fermented milk
WITHDRAWN published on 26.3.2010
Selected format:Hygienic practice of cooked meat and meat-products factory
WITHDRAWN published on 24.9.2003
Selected format:Hygienic specifications of factory for packing drinking water
WITHDRAWN published on 24.9.2003
Selected format:Latest update: 2025-12-18 (Number of items: 2 252 678)
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