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Standards GB - Chinese national standards - Page 6198
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 15222-1994
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Evaluation of surface contamination—Part 2:Tritium surface contamination
WITHDRAWN published on 24.9.1994
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GB/T 15223-1994
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Plastics—Liquid resins—Determination of density by the pyknometer method
WITHDRAWN published on 24.9.1994
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GB/T 15224.1-1994
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Classification for quality of coal—Classification for ash yield of coal
WITHDRAWN published on 24.9.1994
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GB/T 15224.1-2004
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Classification for quality of coal—Part 1:Ash
WITHDRAWN published on 30.4.2004
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GB/T 15224.1-2010
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Classification for quality of coal—Part 1:Ash
WITHDRAWN published on 26.9.2010
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GB/T 15224.2-1994
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Classification for quality of coal—Classification for sulphur content of coal
WITHDRAWN published on 24.9.1994
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GB/T 15224.2-2004
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Classification for coal quality—Part 2:Sulfur content
WITHDRAWN published on 30.4.2004
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GB/T 15224.2-2010
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Classification for quality of coal—Part 2:Sulfur content
WITHDRAWN published on 26.9.2010
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GB/T 15224.3-1994
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Classification for quality of coal—Classification for calorific value of coal
WITHDRAWN published on 24.9.1994
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GB/T 15224.3-2004
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Classification for coal quality—Part 3:Calorific value
WITHDRAWN published on 30.4.2004
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