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Standards GB - Chinese national standards - Page 8795
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 9246-1996
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Microscopes—Oculars (eyepieces)
WITHDRAWN published on 13.8.1996
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GB 9247-1988
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Microscopes--Series of condensers
WITHDRAWN published on 1.1.1988
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GB/T 9247-1996
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Microscopes—Condensers
WITHDRAWN published on 13.8.1996
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GB/T 9248-1988
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Methods of evaluating the performance of flowmeters for incompressible fluide
WITHDRAWN published on 27.5.1988
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GB/T 9249-1988
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Self-balance recorders and indicators for use in industrial-process measurement and control systems
WITHDRAWN published on 1.6.1988
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GB/T 925-1988
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Self-locking nutshexagon light
WITHDRAWN published on 22.12.1988
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GB 9250-1988
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Range of maximum loads drilling and production hoisting equipment
WITHDRAWN published on 1.1.1988
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GB 9251-1988
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WITHDRAWN published on 1.1.1988
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GB/T 9251-1997
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Method for hydraulic test of gas cylinders
WITHDRAWN published on 28.5.1997
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GB/T 9251-2011
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Methods for hydrostatic test of gas cylinders
WITHDRAWN published on 30.12.2011
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