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Standards GB - Chinese national standards - Page 6111
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 14840-1993
WITHDRAWN
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Chemical analysis of limestons for free silica
WITHDRAWN published on 30.12.1993
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GB/T 14841-1993
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Tantalum and tantalum alloy rods and bars
WITHDRAWN published on 24.12.1993
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GB/T 14842-1993
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Niobium rods and bars
WITHDRAWN published on 24.12.1993
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GB/T 14843-1993
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Lithium niobate single crystals
WITHDRAWN published on 24.12.1993
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GB/T 14844-1993
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Designations of semiconductor materials
WITHDRAWN published on 24.12.1993
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GB/T 14845-1993
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Titanium sheet for plate heat exchangers
WITHDRAWN published on 24.12.1993
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GB/T 14846-1993
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Wrought aluminium and aluminium alloy extruded profiles—Tolerances on dimensions and shape
WITHDRAWN published on 24.12.1993
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GB/T 14846-2008
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Aluminium and aluminium alloy extruded profiles—Tolerances on dimensions and form
WITHDRAWN published on 31.3.2008
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GB/T 14847-1993
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Test method for thickness of lightly doped silicon epitaxial layers on heavily doped silicon substrates by infrared reflectance
WITHDRAWN published on 24.12.1993
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GB/T 14848-1993
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Quality standard for ground water
WITHDRAWN published on 30.12.1993
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