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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
Determination of deflection for rigid plastic pipes
WITHDRAWN published on 13.2.1988
Selected format:Method for dimension measuring of plastic pipes
WITHDRAWN published on 13.2.1988
Selected format:Test method for pendulum impact resistance of plastic films
WITHDRAWN published on 13.2.1988
Selected format:-
WITHDRAWN published on 1.1.1986
Selected format:Test method for water absorption of rigid cellular plastics
WITHDRAWN published on 13.2.1988
Selected format:Test method for dimensional stability of rigid cellular plastics
WITHDRAWN published on 13.2.1988
Selected format:Test method for bending of rigid cellular plastics
WITHDRAWN published on 13.2.1988
Selected format:Test method for compression of rigid cellularplastics
WITHDRAWN published on 13.2.1988
Selected format:Rigid cellular plastics—Determination of compression properties
WITHDRAWN published on 4.1.2008
Selected format:Unplasticized polyvinyl chloride (PVC) profiles for the frames of doors and windows
WITHDRAWN published on 1.1.1988
Selected format:Latest update: 2026-01-09 (Number of items: 2 253 999)
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