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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
Food additive—L-lysine monohydrochloride
WITHDRAWN published on 19.1.2009
Selected format:Food additive--Disodium 5-inosinate+disodium 5-guanylate
WITHDRAWN published on 1.1.1989
Selected format:Food additive--Disodium 5-guanylate
WITHDRAWN published on 1.1.1989
Selected format:Food additive--Sodium caseinate
WITHDRAWN published on 1.1.1989
Selected format:Table of universal wall thickness of thermoplastics pipe
WITHDRAWN published on 1.1.1989
Selected format:Cellular plastics—Determination of volume percentage of open and closed cells of rigid materials
WITHDRAWN published on 31.3.1989
Selected format:-
WITHDRAWN published on 1.1.1981
Selected format:Technical specifications for underground construction-moisture prevention
WITHDRAWN published on 1.1.1987
Selected format:Cellular plastics--Specification of polyurethane for rigid materials used in the thermal insulation of building
WITHDRAWN published on 1.1.1989
Selected format:Cellular plastics--Polystyrene foam for thermal insulation
WITHDRAWN published on 1.1.1989
Selected format:Latest update: 2026-04-06 (Number of items: 2 271 069)
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