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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
Technical specification for alarm information and fault grading for vehicles of urban rail transit
Standard published on 31.10.2025
Selected format:Display specification for the man-machine interface of on-board signaling system of the urban rail transit
Standard published on 31.10.2025
Selected format:Textiles - Woven fabrics - Determination of mass per unit length and mass per unit area
Standard published on 6.8.2008
Selected format:Technical specification for alarm information and fault grading for signal system of urban rail transit
Standard published on 31.10.2025
Selected format:Brand evaluation—Implementation and reporting
Standard published on 31.10.2025
Selected format:Gas detectors for workplace atmospheres—Part 1: Performance requirements of detectors for toxic gases
Standard published on 31.10.2025
Selected format:Gas detectors for workplace atmospheres—Part 2: Selection, installation, use and maintenance of detectors for toxic gases
Standard published on 31.10.2025
Selected format:Method for the determination of isotopic composition and concentration of dissolved noble gas in water
Standard published on 31.10.2025
Selected format:Primary coolant system source terms analysis and control criteria for pressurized water reactor nuclear power plants
Standard published on 31.10.2025
Selected format:Power load flexible adjustment and control terminal—General requirements
Standard published on 31.10.2025
Selected format:Latest update: 2026-08-26 (Number of items: 2 298 418)
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