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Standards GB - Chinese national standards - Page 5072
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 6150.8-2023
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Methods for chemical analysis of tungsten concentrates—Part 8: Determination of molybdenum content—Thiocyante spectrophotometry method
Standard published on 6.8.2023
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GB/T 6150.9-2009
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Methods for chemical analysis of tungsten concentrates - Determination of copper content - Flame atomic absorption spectrometry
Standard published on 30.10.2009
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GB/T 6151-2016
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Textiles—Tests for colour fastness—General principles of testing
Standard published on 25.4.2016
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GB/T 6152-1997
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Textiles--Tests for colour fastness--Colour fastness to hot pressing
Standard published on 9.6.1997
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GB/T 6159.1-2014
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MicrographicsVocabularyPart 1: General terms
Standard published on 30.9.2014
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GB/T 6159.10-2006
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Micrographics - Vocabulary - Part 10: Index
Standard published on 19.4.2006
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GB/T 6159.2-2011
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Micrographics - Vocabulary - Part 2: Image positions and methods of recording
Standard published on 29.7.2011
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GB/T 6159.3-2014
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MicrographicsVocabularyPart 3Film processing
Standard published on 30.9.2014
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GB/T 6159.4-2014
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MicrographicsVocabularyPart 4Materials and packaging
Standard published on 30.9.2014
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GB/T 6159.5-2011
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Micrographics - Vocabulary - Part 5: Quality of images,legibility,inspection
Standard published on 29.7.2011
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