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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
Terminology classification and code of geology and mineral resources - Part 17: Coal geology
Standard published on 15.10.2009
Selected format:Terminology classification and code of geology and mineral resources - Part 20: Hydrogeology
Standard published on 15.10.2009
Selected format:Terminology classification and code of geology and mineral resources -Part 21: Engineering geology
Standard published on 15.10.2009
Selected format:Terminology classification and code for geology and mineral resources - Part 24: Geoeconomy
Standard published on 15.10.2009
Selected format:Terminology classification and code of geology and mineral resources - Part 28: Geophysical exploration
Standard published on 15.10.2009
Selected format:Terminology classification and code of geology and mineral resources - Part 29: Geochemistry exploration
Standard published on 15.10.2009
Selected format:Terminology classification and code of geology and mineral resources - Part 32: Prospecting and exploration of solid mineral resources
Standard published on 15.10.2009
Selected format:Terminology classification and code of geology and mineral resources - Part 9: Crystallography and mineralogy
Standard published on 15.10.2009
Selected format:Test methods for single-phase induction motors
Standard published on 30.12.2022
Selected format:Specification of hydraulic turbine governing systems
Standard published on 4.6.2019
Selected format:Latest update: 2026-04-19 (Number of items: 2 274 482)
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