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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
Codes for the representation of names of languages--Part 2:Alpha-3 code
Standard published on 17.10.2000
Selected format:Codes for the representation of names of languages - Part 3: Alpha-3 code for comprehensive coverage of languages
Standard published on 13.3.2009
Selected format:Code of Chinese languages
Standard published on 29.1.1985
Selected format:Statistical interpretation of data--Normality tests
Standard published on 5.3.2001
Selected format:Statistical interpretation of data - Detection and treatment of outliers in the normal sample
Standard published on 16.7.2008
Selected format:Lower confidence limit of reliability for complete sample from normal distribution
Standard published on 15.10.2009
Selected format:Control charts for arithmetic average with warning limits
Standard published on 18.7.2002
Selected format:Terms and symbols for fault tree
Standard published on 15.10.2009
Selected format:Statistical interpretation of data - Techniques of estimation and tests relating to means and variances
Standard published on 28.7.2008
Selected format:Statistical interpretation of data--Power of tests relating to means and variances of normal distributions
Standard published on 29.1.1985
Selected format:Latest update: 2026-08-19 (Number of items: 2 298 207)
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