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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
Minimum allowable values of energy efficiency and energy efficiency grades for small-size submersible motor-pumps
WITHDRAWN published on 18.9.2015
Selected format:Specification for carburizing steels of bearings
WITHDRAWN published on 23.9.1982
Selected format:Minimum allowable values of energy efficiency and energy efficiency grades for submersible pumps for deep well
WITHDRAWN published on 18.9.2015
Selected format:Minimum allowable values of energy efficiency and energy efficiency grades for waste submersible motor-pumps
WITHDRAWN published on 18.9.2015
Selected format:The norm of energy consumption per unit products of gold mining
WITHDRAWN published on 11.9.2015
Selected format:The norm of energy consumption per unit products for mineral processing and metallurgy of gold
WITHDRAWN published on 11.9.2015
Selected format:The norm of energy consumption per unit products of 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WITHDRAWN published on 11.9.2015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WITHDRAWN published on 11.9.2015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WITHDRAWN published on 1.1.1982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WITHDRAWN published on 11.9.2015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:Latest update: 2026-01-26 (Number of items: 2 257 479)
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