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Standards GB - Chinese national standards - Page 8448
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 6730.73-2016
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Iron ores—Determination of total iron content—EDTA photometric titration method
WITHDRAWN published on 24.2.2016
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GB/T 6730.8-1986
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Methods for chemical analysis of iron ores The potassium dichromate volumetric method for the determination of iron () content
WITHDRAWN published on 19.8.1986
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GB/T 6730.9-1986
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Methods for chemical analysis of iron ores The silicomolybdic blue photometric method for the determination of silicon content
WITHDRAWN published on 19.8.1986
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GB/T 6730.9-2006
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Iron ores—Determination of silicon contents—The silicomolybdic blue spectrophotometric method reduce by ammonium ferrous sulfate
WITHDRAWN published on 1.11.2006
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GB 6731-1986
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Industrial vaseline
WITHDRAWN published on 1.1.1986
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GB 6732-1986
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WITHDRAWN published on 1.1.1986
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GB/T 6732-1986
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Ordinary vaseline
WITHDRAWN published on 25.8.1986
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GB 6734-1986
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Raw synthetic rubber in bales--Sampling
WITHDRAWN published on 1.1.1986
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GB 6735-1986
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Synthetic rubbers--Specimen preparation
WITHDRAWN published on 1.1.1986
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GB 6736-1986
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WITHDRAWN published on 1.1.1986
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