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Standards GB - Chinese national standards - Page 4943
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 5211.12-2007
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Determination of resistivity of aqueous extract pigments
Standard published on 11.9.2007
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GB/T 5211.13-1986
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Determination of acidity or alkalinity of theaqueous extract of pigments
Standard published on 26.8.1986
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GB/T 5211.14-2021
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General methods of test for pigments and extenders—Part 14: Determination of residue on sieve—Mechanical flushing procedure
Standard published on 20.8.2021
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GB/T 5211.15-2014
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General methods of test for pigments and extendersPart 15Determination of oil absorption value
Standard published on 8.7.2014
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GB/T 5211.16-2007
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Comparison of lightening power of white pigments
Standard published on 11.9.2007
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GB/T 5211.17-1988
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Comparison of contrast ratio(hiding power)of white pigments
Standard published on 5.9.1988
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GB/T 5211.18-2015
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General methods of test for pigments and extenders—Part 18: Determination of residue on sieve—Water method (Manual procedure)
Standard published on 15.5.2015
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GB/T 5211.19-1988
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Determination of relative tinting strength and colour on reduction of coloured pigments--Visual comparison method
Standard published on 5.9.1988
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GB/T 5211.2-2003
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Determination of matter soluble in water of pigments--Hot extraction method
Standard published on 3.7.2003
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GB/T 5211.20-1999
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Comparison of the colourin full-shade systemsof whiteblack and coloured pigments--Colorimetric method
Standard published on 16.9.1999
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