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Standards GB - Chinese national standards - Page 6657
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 1871-1980
WITHDRAWN
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Analysis of the phosphorus, iron, aluminium, calcium and magnesium contents in phosphorus concentrates and phosphorus minerals
WITHDRAWN published on 1.1.1980
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GB/T 1871.5-1995
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Phosphate rock and concentrate—Determination of magnesium oxide content—Flame atomic absorption spectrometric and volumetric methods
WITHDRAWN published on 20.12.1995
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GB 1872-1980
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Analysis of the fluorine content in phosphorus concentrates and phosphorus minerals
WITHDRAWN published on 1.1.1980
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GB/T 18724-2002
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Graphic technology—Prints and printing inks—Determination of resistance of prints to acids
WITHDRAWN published on 21.5.2002
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GB/T 18724-2008
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Graphic technology - Prints and printing inks - Assessment of resistance to various agents
WITHDRAWN published on 30.12.2008
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GB/T 18725-2002
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Manufacturing information—Technical terminology
WITHDRAWN published on 20.5.2002
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GB/T 18726-2002
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Software interface specification of integrated technology of modern design engineering
WITHDRAWN published on 20.5.2002
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GB/Z 18729-2002
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Specification of enterprise information integration in network environment
WITHDRAWN published on 20.5.2002
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GB 1873-1980
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Analysis of the silicon dioxide in phosphorus concentrates and phosphorus minerals
WITHDRAWN published on 1.1.1980
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GB/Z 18732-2002
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Determination of limits for industrial,scientific and medical equipment (CISPR 23:1987,IDT)
WITHDRAWN published on 21.5.2002
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