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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
Petroleum and natural gas industries—Beam pumping units
WITHDRAWN published on 31.12.2012
Selected format:Particle size analysis—Dynamic light scattering (DLS)
WITHDRAWN published on 31.12.2012
Selected format:Copper/Copper-Nickel(Constantan) thermocouple wires
WITHDRAWN published on 11.12.1998
Selected format:Test method for physical-mechanical performance of flexible graphite ring
WITHDRAWN published on 31.12.2012
Selected format:Engineering technical code for light gauge stainless steel pipes
WITHDRAWN published on 31.12.2012
Selected format:Nickel-chromium/Gold-Iron, Copper/Gold-Iron low temperature thermocouple wires and their reference tables
WITHDRAWN published on 16.2.1982
Selected format:Road wear testing methods for motor vehicle tyres
WITHDRAWN published on 31.12.2012
Selected format:Thresholds of rolling resistance for motor vehicle tyres
WITHDRAWN published on 31.12.2012
Selected format:Thresholds of rolling resistance for motor vehicle tyres
WITHDRAWN published on 31.12.2012
Selected format:Graduation and test method for thermal insulating properties of curtain walls
WITHDRAWN published on 31.12.2012
Selected format:Latest update: 2025-05-08 (Number of items: 2 198 869)
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