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Standards GB - Chinese national standards - Page 6256
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 18881-2009
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Catalyst for light-duty petrol vehicle exhaust purification
WITHDRAWN published on 23.4.2009
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GB/T 18882.1-2002
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Chemical analysis methods for mixed rare earth oxide of ion-absorpted type RE ore—Determination of total rare earth contents—Oxalate gravimetric method
WITHDRAWN published on 19.11.2002
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GB/T 18882.1-2008
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Chemical analysis methods of mixed rare earth oxide of ion-absorpted type RE ore—Determination of fifteen REO relative content
WITHDRAWN published on 17.6.2008
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GB/T 18882.2-2002
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Chemical analysis methods for mixed rare earth oxide of ion-absorpted type RE ore—Determination of fifteen REO relative content—X-ray fluorescence spectrometric method
WITHDRAWN published on 19.11.2002
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GB/T 18882.2-2008
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Chemical analysis methods for mixed rare earth oxide of ion-absorpted type RE ore—Determination of aluminum oxide content
WITHDRAWN published on 17.6.2008
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GB/T 18882.3-2002
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Chemical analysis methods for mixed rare earth oxide of ion-absorpted type RE ore—Determination of fifteen REO relative content—Inductively coupled plasma atomic emission spectrographic method
WITHDRAWN published on 19.11.2002
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GB/T 18882.4-2002
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Chemical analysis methods for mixed rare earth oxide of ion-absorpted type RE ore—Determination of aluminum oxide content—Atomic emission spectrographic method
WITHDRAWN published on 19.11.2002
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GB/T 18882.5-2002
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Chemical analysis methods for mixed rare earth oxide of ion-absorpted type RE ore—Determination of aluminum oxide content—EDTA titrimetric method
WITHDRAWN published on 19.11.2002
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GB/T 18883-2002
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Indoor air quality standard
WITHDRAWN published on 19.11.2002
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GB/T 18883-2002e
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Indoor Air Quality Standard
WITHDRAWN published on 19.11.2002
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