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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
Environmental testing for electric and electronic products—Part 2:Test methods—Test Eb and guidance:Bump
WITHDRAWN published on 29.8.1995
Selected format:Electric and electronic products--Basic environmental test regulations for electricians--Test Ec: The tip-off and tip-over method
WITHDRAWN published on 1.1.1981
Selected format:Environmental testing for electric and electronic products Part 2:Test Ec and quidance:Drop and topple (Primarily for equipment-type specimens)
WITHDRAWN published on 29.8.1995
Selected format:Electric and electronic products--Basic environmental test regulations for electricians--Test Ed: The free falling method
WITHDRAWN published on 1.1.1981
Selected format:Environmental testing for electric and electronic products—Parts 2:Test methods—Test Ed:Free fall
WITHDRAWN published on 29.8.1995
Selected format:-
WITHDRAWN published on 1.1.1989
Selected format:Environmental testing for electric and electronic products—Part 2:Test methods—Test Cb:Damp heat, steady state, primarily for equipment
WITHDRAWN published on 2.11.2001
Selected format:Iron ore pellets for shaft direct-reduction feedstocks - Determination of the clustering index
WITHDRAWN published on 15.7.2009
Selected format:Hot rolled wire rod for prestressed steel
WITHDRAWN published on 15.7.2009
Selected format:Hot-rolled wire rod for prestressed steel wire and strand
WITHDRAWN published on 31.5.2017
Selected format:Latest update: 2026-04-28 (Number of items: 2 274 955)
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