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Standards GB - Chinese national standards - Page 8630
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 7702.20-1997
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Standard test method for granular activated carbon from coal—Determination of pore volume
WITHDRAWN published on 3.12.1997
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GB/T 7702.20-2008
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Test method for granular activated carbon from coal - Determination of pore volume and specific surface area
WITHDRAWN published on 20.11.2008
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GB/T 7702.21-1997
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Standard test method for granular activated carbon from coal—Determination of specific surface area
WITHDRAWN published on 3.12.1997
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GB/T 7702.22-1997
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Standard test method for granular activated carbon from coal—Determination of breakthrough sulphur capacity
WITHDRAWN published on 3.12.1997
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GB/T 7702.3-1997
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Standard test method for granular activated carbon from coal—Determination of hardness
WITHDRAWN published on 3.12.1997
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GB/T 7702.6-1997
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Standard test method for granular activated carbon from coal—Determination of methylene blue adsorption
WITHDRAWN published on 3.12.1997
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GB/T 7702.7-1997
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Standard test method for granular activated carbon from coal—Determination of iodine number
WITHDRAWN published on 3.12.1997
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GB/T 7702.7-2008
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Test method for granular activated carbon from coal—Determination of iodine number
WITHDRAWN published on 1.2.2008
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GB/T 7702.8-1997
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Standard test method for granular activated carbon from coal—Determination of phenol adsorption
WITHDRAWN published on 3.12.1997
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GB/T 7702.9-1997
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Standard test method for granular activated carbon from coal—Determination of ignition temperature
WITHDRAWN published on 3.12.1997
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