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Standards GB - Chinese national standards - Page 7638
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 4700.6-1988
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Methods for chemical analysis of calcium-silicon--The coulometric method for the determination of carbon content
WITHDRAWN published on 1.1.1988
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GB 4700.7-1988
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WITHDRAWN published on 1.1.1988
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GB/T 4700.7-1998
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Methods for chemical analysis of calcium-silicon—The infrared absorption method and the combustion-potassium iodate titration method for the determination of sulfur content
WITHDRAWN published on 7.12.1998
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GB 4700.8-1988
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WITHDRAWN published on 1.1.1988
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GB/T 4701.1-1984
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Methods for chemical analysis of ferrotitanium—The ammonium ferric sulfate volumetric method for the determination of titanium content
WITHDRAWN published on 4.10.1984
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GB/T 4701.10-1988
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Methods for chemical analysis of ferrotitanium—The infrared absorption method for the determination of sulfur content
WITHDRAWN published on 21.2.1988
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GB/T 4701.11-1988
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Methods for chemical analysis of ferrotitanium—The combustion-neutralization titration method for the determination of sulfur content
WITHDRAWN published on 21.2.1988
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GB/T 4701.2-1984
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Methods for chemical analysis of ferrotitanium—The gravimetric method for the determination of silicon content
WITHDRAWN published on 4.10.1984
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GB/T 4701.3-1984
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Methods for chemical analysis of ferrotitanium—The DDTC photometric method for the determination of copper content
WITHDRAWN published on 4.10.1984
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GB/T 4701.4-1984
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Methods for chemical analysis of ferrotitanium--The persulfate-arsenite volumetric method for the determination of manganese content
WITHDRAWN published on 4.10.1984
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