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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
Conical shaft extension for rotating electrical machines
Standard published on 10.11.2010
Selected format:Wool - Determination of acid content
Standard published on 29.4.2008
Selected format:Wool - Determination of solubility in alkali
Standard published on 29.4.2008
Selected format:Textiles - Determination of pH of aqueous extract
Standard published on 11.6.2009
Selected format:Textiles—Determination of pH of aqueous extract
Standard published on 11.6.2009
Selected format:
Textiles—Determination of pH of aqueous extract
Execute Date: march 2027
Standard published on 28.2.2025
Selected format:Information processing - File structure and labeling of magnetic tapes for information interchange
Standard published on 18.6.2008
Selected format:Discrete semiconductor devices—Blank detail specification for high power bipolar transistors
Standard published on 31.3.2026
Selected format:Dimensions of outlines for discrete semiconductor devices
Standard published on 31.3.2026
Selected format:Acoustics—Statistical distribution of hearing thresholds related to age and gender
Standard published on 1.8.2025
Selected format:Latest update: 2026-11-09 (Number of items: 2 209 259)
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