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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
Steel--Determination of continuous cooling transformation diagram--Dilatometric method
WITHDRAWN published on 1.1.1985
Selected format:Code for constructional quality acceptance of urban rail transit signal engineering
WITHDRAWN published on 31.5.2010
Selected format:Steel--Determination of isothermal transformation diagram--Magnetic method
WITHDRAWN published on 15.4.1985
Selected format:Standard for allocated mine monitoring and controlling sustem of coal industry
WITHDRAWN published on 31.5.2010
Selected format:Code for design of building and structure of coal mine of preparation plant
WITHDRAWN published on 31.5.2010
Selected format:Occupational safety code for geotechnical investigation
WITHDRAWN published on 31.5.2010
Selected format:Code for design of waste heat power generation in cement plant
WITHDRAWN published on 31.5.2010
Selected format:Methods for chemical analysis of ferromolybdenum—The 8-hydroxyquinoline gravimetric method for the determination of molybdenum
WITHDRAWN published on 15.4.1985
Selected format:Methods for chemical analysis of ferromolybdenum—The combustion-potassium iodate titration method for the determination of sulfur content
WITHDRAWN published on 21.2.1988
Selected format:Methods for chemical analysis of ferromolybdenum—The malachite green spectrophotometric method for the determination of antimony content
WITHDRAWN published on 15.4.1985
Selected format:Latest update: 2026-06-15 (Number of items: 2 282 497)
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