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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
Coding rules for urban geographical features - City roads, road intersections, blocks and municipal pipe lines
Standard published on 6.5.2009
Selected format:Classification and codes of diseases
Standard published on 13.10.2016
Selected format:Information technology - Telecommunication and information exchange between systems - Start-stop transmission signal quality at DTE/DCE interfaces
Standard published on 28.7.2008
Selected format:Information technology - Telecommunications and information exchange between systems - High-level data link control procedures - Description of the X.25 LAPB-compatible DTE data link procedures
Standard published on 1.9.2008
Selected format:Log inspection
Standard published on 15.3.2024
Selected format:Course development guide for education about standardization—Automotive standardization and application
Standard published on 3.12.2025
Selected format:Signalling between mobile station and base station and mobile services switching centre in public land mobile communication network at 450MHz band
Standard published on 17.5.1993
Selected format:Reaction to fire tests for building materials and products - Determination of the heat of combustion
Standard published on 21.12.2007
Selected format:
Reaction to fire tests for building materials and products—Determination of the heat of combustion
Execute Date: october 2026
Standard published on 31.3.2026
Selected format:Test method for combustion heat release of building materials
Standard published on 27.3.2014
Selected format:Latest update: 2026-06-15 (Number of items: 2 282 497)
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