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Standards GB - Chinese national standards - Page 5523
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 11064.7-1989
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Lithium carbonate, lithium hydroxide monohydrate and lithium chloride—Determination of iron content—1,10-phenanthroline spectrophotometric method
WITHDRAWN published on 31.3.1989
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GB/T 11064.8-1989
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Lithium carbonate, lithium hydroxide monohydrate and lithium chloride—Determination of silicon content—Molybdenum blue spectrophotometric method
WITHDRAWN published on 31.3.1989
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GB/T 11064.9-1989
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Lithium carbonate, lithium hydroxide monohydrate and lithium chloride—Determination of sulphide content—Reduction titrimetric method
WITHDRAWN published on 31.3.1989
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GB/T 11064.9-2013
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Methods for chemical analysis of lithium carbonate,lithium hydroxide monohydrate and lithium chloride—Part 9:Determination of sulfate content—Barium sulfate nephelometry method
WITHDRAWN published on 27.11.2013
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GB 11065.1-1989
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Samarium-europium-gadolinium concentrates--Determination of total rare earth oxide content--Gravimetric method
WITHDRAWN published on 1.1.1989
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GB/T 11065.1-1989
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Samarium-europium-gadolinium concentrates--Determination of total rare earth oxide content--Gravimetric method
WITHDRAWN published on 31.3.1989
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GB 11065.2-1989
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Samarium-europium-gadolinium concentrates--Determination of samrium oxide, europium oxide, gadolinium oxide, ytterbium oxide contents--Chromatographic separation with p507 extraction resin and DTPA titrimetric method
WITHDRAWN published on 1.1.1989
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GB/T 11065.2-1989
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Samarium-europium-gadolinium concentrates--Determination of samrium oxide,europium oxide,gadolinium oxide,ytterbium oxide contents--Chromatographic separation with p507 extraction resin and DTPA titrimetric method
WITHDRAWN published on 31.3.1989
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GB 11065.3-1989
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Samarium-europium-gadolinium concentrates - Determination of samarium oxide, europium oxide, gadolinium oxide contents - X ray fluorescence spectrometric method
WITHDRAWN published on 1.1.1989
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GB/T 11065.3-1989
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Samarium-europium-gadolinium concentrates --Determination of samarium oxide,europium oxide,gadolinium oxide and ytterbium oxide contents --X-ray fluorescenae spectrometic method
WITHDRAWN published on 31.3.1989
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