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Standards GB - Chinese national standards - Page 6392
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 16479-1996
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Rare earth carbonate
WITHDRAWN published on 9.7.1996
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GB/T 16479-2008
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Light rare earth carbonate
WITHDRAWN published on 31.3.2008
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GB/T 1648-1984
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H-acid monosodium salt
WITHDRAWN published on 1.1.1984
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GB/T 1648-2001
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H-acid monosodium salt(1-Amino-8-hydroxy-3,6-naphthalenedisulfonic acid monosodium salt)
WITHDRAWN published on 13.7.2001
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GB/T 1648-2007
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1-Amino-8-hydroxy-3,6-naphthalenedisulfonic acid monosodium salt(H-acid monosodium salt)
WITHDRAWN published on 28.11.2007
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GB/T 16480.1-1996
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Method for chemical analysis of yttrium and yttrium oxide—Determination of lanthanum oxide, cerium oxide, praseodymium oxide, neodymium oxide, samarium oxide, europium oxide, gadolinium oxide, terbium oxide, dysprosium oxide, holmium oxide, erbium oxi, thulium oxide, ytterbium oxide and lutecium oxide contents
WITHDRAWN published on 9.7.1996
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GB/T 16480.2-1996
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Methods for chemical analysis of yttrium and yttrium oxide—Determination of tantaium, titanium, copper and nickel content
WITHDRAWN published on 9.7.1996
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GB/T 16480.3-1996
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Method for chemical analysis of yttrium and yttrium oxide—Determination of fluorine content
WITHDRAWN published on 9.7.1996
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GB/T 16480.4-1996
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Methods for chemical analysis of yttrium and yttrium oxide—Determination of sulphur content
WITHDRAWN published on 9.7.1996
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GB/T 16480.5-1996
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Method for chemical analysis of yttrium and yttrium oxide—Determination of nitrogen content
WITHDRAWN published on 9.7.1996
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