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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--Sodium propionate
WITHDRAWN published on 1.1.1987
Selected format:Food additive—Glucono delta lactone
WITHDRAWN published on 14.4.1987
Selected format:Food additive—Glucono delta-lactone
WITHDRAWN published on 30.6.2005
Selected format:Food additive—D-sorbitol solution
WITHDRAWN published on 14.4.1987
Selected format:Food additive—Sorbitol solution
WITHDRAWN published on 30.6.2005
Selected format:Carbon steel castings suitable for welded structure
WITHDRAWN published on 17.4.1987
Selected format:steel casting suitable for welded structure
WITHDRAWN published on 23.12.2010
Selected format:Reflecting prisms--Optical axis length of optical axisaxial section and optical parallelism
WITHDRAWN published on 17.4.1987
Selected format:Reflecting prisms--Classificationcode name and chart
WITHDRAWN published on 20.6.1987
Selected format:Reflecting prisms--Characteristics of image rotation
WITHDRAWN published on 20.6.1987
Selected format:Latest update: 2026-03-30 (Number of items: 2 269 988)
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