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Standards GB - Chinese national standards - Page 8699
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 8762.5-1988
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Yttrium oxide of phosphor grade—Determination of trace rare earth oxide contents—Spectrochemical method and direct spectrographic method
WITHDRAWN published on 25.2.1988
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GB/T 8762.6-1988
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Europium oxide of phosphor grade--Determination of lead oxide, nickel oxide, iron oxide and copper oxide contents--Emission spectrographic method
WITHDRAWN published on 25.2.1988
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GB/T 8762.7-1988
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Europium oxide of phosphor grade—Determination of cerium oxide, praseodymium oxide, samarium oxide, gadolinium oxide and dysprosium oxide contents—Spectrochemical method and direct spectrographic method
WITHDRAWN published on 25.2.1988
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GB/T 8762.8-2000
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Europium oxide—Determination of lanthanum oxide,cerium oxide,praseodymium oxide,neodymium oxide,samarium oxide,gadolinium oxide,terbium oxide,dysprosium oxide,holmium oxide,erbium oxide,thulium oxide,ytterbium oxide,lutetium oxide and yttrium oxide cont
WITHDRAWN published on 5.6.2000
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GB/T 8763-1988
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Test methods of gas absorption characteristic for non-evaporation gettering materials and products
WITHDRAWN published on 25.2.1988
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GB 8764-1988
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Lithium carbonate for production of red luminescent material
WITHDRAWN published on 1.1.1988
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GB/T 8764-1988
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Lithium carbonate for production of red luminescent material
WITHDRAWN published on 25.2.1988
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GB 8765-1988
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Lithium phosphate for production of red luminescent material
WITHDRAWN published on 1.1.1988
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GB/T 8765-1988
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Lithium phosphate for production of red luminescent material
WITHDRAWN published on 25.2.1988
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GB/T 8766-1988
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Lithium hydroxide monohydrate
WITHDRAWN published on 25.2.1988
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