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Standards GB - Chinese national standards - Page 6929
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 21836-2008
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Manganous manganic oxide for soft magnetic ferrites
WITHDRAWN published on 13.5.2008
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GB/T 21837-2008
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Practice for electromagnetic examination of ferromagnetic steel wire rope
WITHDRAWN published on 13.5.2008
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GB/T 21838.1-2008
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Metallic materials—Instrumented indentation test for hardness and materials parameters—Part 1:Test method
WITHDRAWN published on 13.5.2008
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GB/T 21838.2-2008
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Metallic materials—Instrumented indentation test for hardness and materials parameters—Part 2:Verification and calibration of testing machines
WITHDRAWN published on 20.6.2008
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GB/T 21838.3-2008
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Metallic materials—Instrumented indentation test for hardness and materials parameters—Part 3:calibration of reference blocks
WITHDRAWN published on 20.6.2008
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GB/T 21838.4-2008
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Metallic materials—Instrumented indentation test for hardness and materials parameters—Part 4:Test method for metallic and non-metallic coatings
WITHDRAWN published on 13.5.2008
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GB/T 21839-2008
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Steel for prestressed concrete—Test methods
WITHDRAWN published on 13.5.2008
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GB/T 2184-1991
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(The parts and units of jigs and fixtures. Elbow plate)
WITHDRAWN published on 1.1.1991
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GB/T 21841-2008
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Antioxidant 6PPD
WITHDRAWN published on 15.5.2008
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GB/T 2185-1991
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(The parts and units of jigs and fixtures. U-shaped plate)
WITHDRAWN published on 1.1.1991
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