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Standards GB - Chinese national standards - Page 6867
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 1979-1980
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Diagram of a low magnification texture blemish grading of structural steel
WITHDRAWN published on 1.1.1980
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GB/T 1979-2001
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Standard diagrams for macrostructure and defect of structural steels
WITHDRAWN published on 17.12.2001
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GB/T 19790.1-2005
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Disposable chopsticks—Part 1:Wooden chopsticks
WITHDRAWN published on 28.6.2005
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GB/T 19792-2005
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Agricultural irrigation equipment—Water-driven chemical injector pumps
WITHDRAWN published on 8.6.2005
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GB/T 19792-2012
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Agricultural irrigation equipment - Water-driven chemical injector pumps
WITHDRAWN published on 31.12.2012
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GB/T 19793-2005
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Agricultural irrigation equipment—Hydraulically operated irrigation valves
WITHDRAWN published on 8.6.2005
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GB/T 19794-2005
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Agricultural irrigation equipment—Volumetric valves—General requirements and test methods
WITHDRAWN published on 8.6.2005
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GB/T 19794-2012
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Agricultural irrigation equipment—Volumetric valves—General requirements and test methods
WITHDRAWN published on 31.12.2012
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GB/T 19795.1-2005
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Agricultural irrigation equipment—Rotating sprinklers—Part 1:Design and operational requirements
WITHDRAWN published on 8.6.2005
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GB/T 19795.2-2005
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Agricultural irrigation equipment—Rotating sprinklers—Part 2:Uniformity of distribution and test methods
WITHDRAWN published on 8.6.2005
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