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Standards GB - Chinese national standards - Page 7318
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 2164-1991
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Spherical head screw
WITHDRAWN published on 1.1.1991
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GB/T 21644-2008
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General Description of Networks Distance Learning
WITHDRAWN published on 10.4.2008
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GB/T 21648-2008
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Industrial dense woven wire cloth
WITHDRAWN published on 16.4.2008
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GB/T 21649.1-2008
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Particle size analysis—Image analysis methods—Part 1:Static image analysis method
WITHDRAWN published on 16.4.2008
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GB/T 21649.2-2017
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Particle size analysis—Image analysis methods—Part 2:Dynamic image analysis methods
WITHDRAWN published on 28.2.2017
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GB/T 2165-1991
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Quick discharging bolt for T-slot
WITHDRAWN published on 1.1.1991
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GB/T 21650.1-2008
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Pore size distribution and porosity of solid materials by mercury porosimetry and gas adsorption - Part 1: Mercury porosimetry
WITHDRAWN published on 16.4.2008
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GB/T 21651-2008
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Secondarily zinc alloy ingots
WITHDRAWN published on 31.3.2008
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GB/T 21652-2008
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Copper and copper alloy wire
WITHDRAWN published on 31.3.2008
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GB/T 21654-2008
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Grafcet specification language for sequential function charts
WITHDRAWN published on 24.3.2008
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