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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
Norm of energy consumption per unit productsof gold refining
WITHDRAWN published on 11.9.2015
Selected format:Norm of energy consumption per unit product of urea
WITHDRAWN published on 11.9.2015
Selected format:-
WITHDRAWN published on 1.1.1982
Selected format:The norm of energy consumption per unit products of copper drawing stock for electrical purpose
WITHDRAWN published on 11.9.2015
Selected format:Norm of energy consumption per unit product of ethylene glycol
WITHDRAWN published on 11.9.2015
Selected format:-
WITHDRAWN published on 1.1.1982
Selected format:The norm of energy consumption per unit products of titanium dioxide
WITHDRAWN published on 11.9.2015
Selected format:Norm of energy consumption per unit product of styrene monomer
WITHDRAWN published on 11.9.2015
Selected format:Carbon constructional quality steel wires
WITHDRAWN published on 23.9.1982
Selected format:Coal based Fischer-Tropsch synthesis—Liquid wax
WITHDRAWN published on 9.10.2015
Selected format:Latest update: 2026-03-30 (Number of items: 2 269 988)
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