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Standards GB - Chinese national standards - Page 380
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 14352.22-2021
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Methods for chemical analysis of tungsten ores and molybdenum ores—Part 22:Determination of antimony content—Hydride generation atomic fluorescence spectrometry
Standard published on 9.3.2021
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GB/T 14352.24-2022
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Methods for chemical analysis of tungsten ores and molybdenum ores—Part 24: Determination of germanium conten—Inductively coupled plasma mass spectrometry
Standard published on 30.12.2022
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GB/T 14352.3-2010
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Methods for chemical analysis of tungsten ores and molybdenum ores - Part 3Determination of copper content
Standard published on 10.11.2010
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GB/T 14352.4-2010
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Methods for chemical analysis of tungsten ores and molybdenum ores - Part 4Determination of lead content
Standard published on 10.11.2010
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GB/T 14352.5-2010
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Methods for chemical analysis of tungsten ores and molybdenum ores - Part 5Determination of zinc content
Standard published on 10.11.2010
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GB/T 14352.6-2010
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Methods for chemical analysis of tungsten ores and molybdenum ores - Part 6Determination of cadmium content
Standard published on 10.11.2010
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GB/T 14352.7-2010
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Methods for chemical analysis of tungsten ores and molybdenum ores - Part 7Determination of cobalt content
Standard published on 10.11.2010
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GB/T 14352.8-2010
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Methods for chemical analysis of tungsten ores and molybdenum ores - Part 8Determination of nickel content
Standard published on 10.11.2010
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GB/T 14352.9-2010
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Methods for chemical analysis of tungsten ores and molybdenum ores - Part 9Determination of sulfur content
Standard published on 10.11.2010
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GB/T 14353.1-2010
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Methods for chemical analysis of copper ores, lead ores and zinc ores - Part 1: Determination of copper content
Standard published on 10.11.2010
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