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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
Current ratings for high and low voltage electrical apparatus
WITHDRAWN published on 1.1.1980
Selected format:Standard current
WITHDRAWN published on 31.3.1996
Selected format:Characteristics of distortion and error-rate measuring apparatus for data transmission
WITHDRAWN published on 3.4.1987
Selected format:Method for the determination of vitamin B1 in cereals
WITHDRAWN published on 4.3.1987
Selected format:Determination of vitamin B1 in cereals
WITHDRAWN published on 27.5.2008
Selected format:Method for the determination of vitamin B2 in cereals
WITHDRAWN published on 4.3.1987
Selected format:Determination of vitamin B2 in cereals
WITHDRAWN published on 27.5.2008
Selected format:-
WITHDRAWN published on 1.1.1990
Selected format:The tribromoarsenazo photometric method for the determination of rare earth oxide content in rice and wheat
WITHDRAWN published on 2.4.1987
Selected format:Lubricants and related products (class L)—Classification—Part 1:General
WITHDRAWN published on 3.4.1987
Selected format:Latest update: 2026-03-30 (Number of items: 2 269 988)
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