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Standards GB - Chinese national standards - Page 7276
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 26416.2-2010
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Chemical analysis methods of dysprosium ferroalloy—Part 2:Determination of rare earth impurity contents—Inductively coupled plasma atomic emission spectrometry
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GB/T 26416.3-2010
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Chemical analysis methods of dysprosium ferroalloy—Part 3:Determination of calcium,magnesium,aluminum,silicon,nickel,molybdenum,and tungsten contents—Inductively coupled plasma atomic emission spectrometry
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GB/T 26416.4-2010
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Chemical analysis methods of dysprosium ferroalloy—Part 4:Determination of iron content—The potassium dichromate titrimetry
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GB/T 26416.5-2010
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Chemical analysis methods of dysprosium ferroalloy—Part 5:Determination of oxygen content—Impulse-infrared conductance absorption method
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GB 26418-2010
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Limited content of selenium in feeds
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GB 26419-2010
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Limited contents of copper in feeds
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GB/T 26421-2010
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Quality grading of Azadirachta indica seedling
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GB/T 26422-2010
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Classification of Azadirachta indica seed quality
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GB/T 26429-2010
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Plant engineering consulting service specification
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GB/T 26429-2010E
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Plant engineering consulting service specification
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