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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
Polyimide staple fiber
WITHDRAWN published on 12.5.2017
Selected format:Test method for tensile properties of carbon fiber strands
WITHDRAWN published on 28.12.1982
Selected format:Test methods for tensile properties of carbon fiber multifilament
WITHDRAWN published on 18.5.2005
Selected format:General requirement of aero-derivative gas turbine assembly enclosure
WITHDRAWN published on 12.5.2017
Selected format:Wind turbine generator systems—Lightning protection
WITHDRAWN published on 12.5.2017
Selected format:Test method for number of filaments in carbon fiber strands by microscopy
WITHDRAWN published on 28.12.1982
Selected format:General installation requirements for aero-derivative gas turbine assembly
WITHDRAWN published on 12.5.2017
Selected format:Vacuum technology—Positive-displacement vacuum pump—Measurement of water vapour tolerance
WITHDRAWN published on 12.5.2017
Selected format:Pneumatic fluid power—Push-in connectors for plastic tubes
WITHDRAWN published on 12.5.2017
Selected format:Test method for diameter and equivalent diameter of carbon fiber by microscopy
WITHDRAWN published on 28.12.1982
Selected format:Latest update: 2026-01-23 (Number of items: 2 257 393)
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