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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
Picture image area and photographic sound record on 16mm motion-picture release prints--Positions and dimensions
WITHDRAWN published on 25.8.1985
Selected format:Cinematography—Picture image area and photographic sound record on 16mm motion-picture release prints—Positions and dimensions
WITHDRAWN published on 4.12.2002
Selected format:Specifications for the design of industrial and civil electric substations(10kV).(Trial)
WITHDRAWN published on 1.1.1983
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WITHDRAWN published on 1.1.1985
Selected format:Splices for use on 70mm,65mm,35mm and 16mm motion-picture films—dimensions and locations
WITHDRAWN published on 28.12.1994
Selected format:Safe picture areas for motion-picture films for television--Positions and dimensions
WITHDRAWN published on 25.8.1985
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WITHDRAWN published on 1.1.1985
Selected format:-
WITHDRAWN published on 1.1.1985
Selected format:Packaging,marking,transportation and storage of hand tools
WITHDRAWN published on 16.8.1985
Selected format:Management regulations for examining the safety technique on the workmen working on particular posts
WITHDRAWN published on 1.1.1985
Selected format:Latest update: 2026-06-10 (Number of items: 2 281 917)
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