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Standards GB - Chinese national standards - Page 7922
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 4930-2008
WITHDRAWN
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Microbeam analysis—Electron probe microanalysis—Guidelines for the specification of certified reference materials(CRMs)
WITHDRAWN published on 11.4.2008
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GB/T 4931-2000
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The series and type spectrum for helium neon lasers
WITHDRAWN published on 3.1.2000
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GB/T 4932-2000
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The series and type spectrum for carbon dioxide lasers
WITHDRAWN published on 3.1.2000
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GB 4933-1985
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Field vane shear apparatus
WITHDRAWN published on 1.1.1985
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GB 4934-1985
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WITHDRAWN published on 1.1.1985
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GB/T 4934-1996
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Strain-controlled direct shear apparatus
WITHDRAWN published on 13.12.1996
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GB 4935-1985
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WITHDRAWN published on 1.1.1985
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GB/T 4935-1996
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Single lever arm oedometer
WITHDRAWN published on 13.12.1996
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GB 4937-1985
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Mechanical and climatic test methods for discrete semiconductor devices
WITHDRAWN published on 1.1.1985
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GB/T 4937-1995
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Mechanical and climatic test methods for semiconductor devices
WITHDRAWN published on 22.12.1995
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