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Standards GB - Chinese national standards - Page 5544
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 11199-1989
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Membrane process sodium hydroxide
WITHDRAWN published on 24.2.1989
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GB/T 11199-2006
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High-purity sodium hydroxide
WITHDRAWN published on 14.9.2006
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GBN 112-1981
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WITHDRAWN published on 1.1.1981
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GBJ 112-1987
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Technical specifications for construction ground in expanding soil areas
WITHDRAWN published on 12.11.1987
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GB 1120-1985
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Metal slotting saws with coarse teeth
WITHDRAWN published on 1.1.1985
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GB/T 11200.1-1989
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Membrane process sodium hydroxide--Determination of sodium chlorate content--o-Tolidine spectrometric method
WITHDRAWN published on 31.3.1989
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GB/T 11200.1-2006
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Sodium hydroxide for industrial use - Determination of sodium chlorate content - O-Tolidine spectrometric method
WITHDRAWN published on 14.9.2006
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GB/T 11200.2-1989
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Membrane process sodium hydroxide--Determination of aluminium oxide content-Spectrometric method
WITHDRAWN published on 31.3.1989
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GB/T 11200.3-1989
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Membrane process sodium hydroxide--Determination of calcium contents--Flame atomic absorption method
WITHDRAWN published on 31.3.1989
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GB/T 11201-1989
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Vulcanized rubber-Determination of metal content--Flame atomic absorption spectrometric method--Part4: Determination of iron content
WITHDRAWN published on 31.3.1989
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