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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
All dielectric self-supporting optical fiber cable
WITHDRAWN published on 4.12.2002
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WITHDRAWN published on 1.1.1963
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WITHDRAWN published on 1.1.1982
Selected format:Classification standard for size fractions of coal
WITHDRAWN published on 17.4.1997
Selected format:Food additive Sodium hexametaphosphate
WITHDRAWN published on 1.3.1989
Selected format:Food additive—Sodium hexametaphosphate
WITHDRAWN published on 30.6.2005
Selected format:Test methods for polarization mode dispersion of single-mode optical fibres
WITHDRAWN published on 4.12.2002
Selected format:Software engineering—Product evaluation—Part 1:General overview
WITHDRAWN published on 4.12.2002
Selected format:Software engineering—Product evaluation—Part 2:Planning and management
WITHDRAWN published on 4.12.2002
Selected format:Software engineering—Product evaluation—Part 3:Process for developers
WITHDRAWN published on 4.12.2002
Selected format:Latest update: 2025-12-21 (Number of items: 2 252 887)
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