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Standards GB - Chinese national standards - Page 7608
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 8151.7-2000
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Methods for chemical analysis of zinc concentrates—Determination of arsenic content
WITHDRAWN published on 16.2.2000
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GB/T 8151.8-2000
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Methods for chemical analysis of zinc concentrates—Determination of cadmium content
WITHDRAWN published on 16.2.2000
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GB/T 8151.9-2000
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Methods for chemical analysis of zinc concentrates—Determination of fluorine content
WITHDRAWN published on 16.2.2000
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GB/T 8152.1-1987
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Methods for chemical analysis of lead concentrates The Na2EDTA volumetric method for the determination of lead content
WITHDRAWN published on 10.8.1987
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GB/T 8152.10-1989
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Methods for chemical analysis of lead concentrates—Determination of silver content—Flame atomic absorption spectrophotometric method
WITHDRAWN published on 31.3.1989
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GB/T 8152.11-2006
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Methods for chemical analysis of lead concentrates—Determination of mercury content—Atomic fluorescence spectrometer method
WITHDRAWN published on 24.8.2006
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GB/T 8152.2-1987
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Methods for chemical analysis of lead concentrates The Na2EDTA volumetric method for the determination of zinc content
WITHDRAWN published on 10.8.1987
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GB/T 8152.3-1987
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Methods for chamical analysis of lead concentrates The chromazurol S spectrophotometric method for the determination of aluminium () oxide content
WITHDRAWN published on 10.8.1987
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GB/T 8152.4-1987
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Methods for chemical analysis of lead concentrates--The atomic absorption spectrophotometric method forthe determination of copper content
WITHDRAWN published on 10.8.1987
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GB/T 8152.5-1987
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Methods for chemical analysis of lead concentrates--The atomic absorption spectrophotometric methodfor the determination of magnesium oxide content
WITHDRAWN published on 10.8.1987
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