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Standards GB - Chinese national standards - Page 5789
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 12961-1991
WITHDRAWN
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Method for determination of pozzolana or fly ash content in cement
WITHDRAWN published on 1.1.1991
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GB 12962-1991
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Monocrystalline silicon
WITHDRAWN published on 1.1.1991
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GB/T 12962-1996
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Monocrystalline silicon
WITHDRAWN published on 4.11.1996
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GB/T 12962-2005
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Monoccrystalline silicon
WITHDRAWN published on 19.9.2005
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GB 12963-1991
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Polycrystalline silicon
WITHDRAWN published on 1.1.1991
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GB/T 12963-1996
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Polycrystalline silicon
WITHDRAWN published on 4.11.1996
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GB/T 12963-2009
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Specification for polycrystalline silicon
WITHDRAWN published on 30.10.2009
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GB/T 12963-2014
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Electronic-grade polycrystalline silicon
WITHDRAWN published on 31.12.2014
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GB 12964-1991
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Monocrystalline silicon polished slices
WITHDRAWN published on 1.1.1991
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GB/T 12964-1996
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Monocrystalline silicon polished wafers
WITHDRAWN published on 4.11.1996
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