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Standards GB - Chinese national standards - Page 511
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 15248-2008
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The test method for axial loading constant-amplitude low-cycle fatigue of metallic materials
Standard published on 10.4.2008
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GB/T 15249.1-2009
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Methods for chemical analysis of crude gold—Part 1:Determination of gold content—Fire assay gravimetric method
Standard published on 6.5.2009
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GB/T 15249.2-2009
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Methods for chemical analysis of crude gold - Part 2: Determination of silver content - Fire assay gravimetric and EDTA titrimetric methods
Standard published on 6.5.2009
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GB/T 15249.3-2009
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Methods for chemical analysis of crude gold—Part 3:Determination of copper content—Iodometric method
Standard published on 6.5.2009
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GB/T 15249.4-2009
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Methods for chemical analysis of crude gold - Part 4: Determination of lead content - EDTA titrimetric method
Standard published on 6.5.2009
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GB/T 15249.5-2009
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Methods for chemical analysis of crude gold - Part 5: Determination of mercury content - Cold atomic absorption spectrometry
Standard published on 6.5.2009
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GB/T 1525-2006
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Design paper
Standard published on 31.3.2006
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GB/T 15251-2008
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Rubber - Determination of free sulfur
Standard published on 15.5.2008
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GB/T 15252-2014
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Rubbercompounded or vulcanizedDetermination of sulfide sulfur contentLodometric method
Standard published on 22.12.2014
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GB/T 15254-2014
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Rubber,vulcanizedDetermination of adhesion to metal180°Peel test method
Standard published on 22.12.2014
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