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Standards GB - Chinese national standards - Page 7347

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

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GB/T 9043-1999 WITHDRAWN

General technical requirements of gas discharge tubes for the over-voltage protection of telecommunications installations

WITHDRAWN published on 2.8.1999

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GB/T 9045-1988 WITHDRAWN

Determination of resolving power for photographic materials

WITHDRAWN published on 13.4.1988

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GB/T 9046-1988 WITHDRAWN

Labelling of containers for motion picture film and magnetic materials--Minimum information for exchange of materials

WITHDRAWN published on 13.4.1988

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GB/T 9047-1988 WITHDRAWN

Six-track magnetic sound records on 70mm motion-picture release prints--Locations and dimensions

WITHDRAWN published on 13.4.1988

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GB/T 9048-1988 WITHDRAWN

Image area produced by 65mm and 70mm motion-picture camera aperture and maximum projectable image area on 70mm motion-picture prints—Positions and dimensions

WITHDRAWN published on 13.4.1988

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