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Standards GB - Chinese national standards - Page 6095
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 14635-2008E
WITHDRAWN
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Chemical analysis method for rare earth metals and their compounds—Determination of total rare earth content
WITHDRAWN published on 17.6.2008
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GB/T 14635.1-1993
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Rare earth metals and their compounds—Determination of total rare earth contents—Rare earth oxalate gravimetric method
WITHDRAWN published on 15.9.1993
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GB/T 14635.2-1993
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Rare earth metals and their compounds—Determination of total rare earth contents—EDTA volumetric method
WITHDRAWN published on 15.9.1993
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GB/T 14635.3-1993
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Heavy rare earth metals and their compounds—Determination of total rare earth contents—EDTA volumetric method
WITHDRAWN published on 15.9.1993
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GB/T 14636-1993
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Industrial circulating cooling water—Determination of calcium—Atomic absorption spectrometric method
WITHDRAWN published on 6.8.1993
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GB/T 14636-2007
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Industrial circulating cooling water—Determination of calcium,magnesium—Atomic absorption spectrometric method
WITHDRAWN published on 13.8.2007
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GB/T 14637-2007
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Industrial circulating cooling water and scale—Determination of copper,zinc—Atomic absorption spectrometric method
WITHDRAWN published on 13.8.2007
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GB/T 14637.1-1993
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Industrial circulating cooling water—Determination of zinc—Atomic absorption spectrometric method
WITHDRAWN published on 6.8.1993
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GB/T 14637.2-1993
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Scale in industrial circulating cooling water—Determination of zinc—Atomic absorption spectrometric method
WITHDRAWN published on 6.8.1993
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GB/T 14638.1-1993
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Industrial circulating cooling water—Determination of copper—Atomic absorption spectrometric method
WITHDRAWN published on 6.8.1993
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