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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
Method of calculating energy saved in industrial enterprise
WITHDRAWN published on 6.11.1991
Selected format:Calculating methods of energy saved for enterprise
WITHDRAWN published on 11.3.2009
Selected format:Petroleum and liquid petroleum products—Volumetric calibration of vertical cylindrical metal tanks—Strapping method
WITHDRAWN published on 6.11.1991
Selected format:Dip-tapes and steel strapping tapes for petroleum—Specification
WITHDRAWN published on 6.11.1991
Selected format:Cold-rolled quality carbon structural steel sheets and strips
WITHDRAWN published on 6.11.1991
Selected format:Metallic materials--Tensile testing at low temperatures
WITHDRAWN published on 6.11.1991
Selected format:Metallic materials—Tensile testing at low temperature
WITHDRAWN published on 16.8.2006
Selected format:Iron ore pellets—Determination of relative free-swelling index
WITHDRAWN published on 6.11.1991
Selected format:Iron ores—Determination of reducibility
WITHDRAWN published on 6.11.1991
Selected format:Iron ores—Low-temperature disintegration test—Method using cold tumbling after static reduction
WITHDRAWN published on 6.11.1991
Selected format:Latest update: 2026-01-21 (Number of items: 2 257 297)
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