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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
Endurance test for cycle tyres (Drum method)
WITHDRAWN published on 14.10.1997
Selected format:Unseat by water pressure testing method for cycle tyres
WITHDRAWN published on 14.10.1997
Selected format:Tyre valves—Core chambers
WITHDRAWN published on 14.10.1997
Selected format:Tyre valve—Core chambers
WITHDRAWN published on 15.12.2009
Selected format:Tyre valve threads
WITHDRAWN published on 14.10.1997
Selected format:Test method for tyre valve
WITHDRAWN published on 24.9.2002
Selected format:Test method for tyre valves—Part 1:Test method for clamp-in valves
WITHDRAWN published on 4.6.2008
Selected format:Test method for tyre valve—Part 2:Rubber base valves test methods
WITHDRAWN published on 4.6.2008
Selected format:Test method for tyre valve—Part 3:Snap-in valves—Test methods
WITHDRAWN published on 4.6.2008
Selected format:Test method for tyre valve—Part 4:Test methods for clamp-in tubeless valves
WITHDRAWN published on 15.12.2009
Selected format:Latest update: 2024-09-02 (Number of items: 2 345 509)
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