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Standards GB - Chinese national standards - Page 7293
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 2605-1987
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Silica refractory bricks for coke oven
WITHDRAWN published on 1.1.1987
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GB/T 26050-2010
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Hardmetals—Determination of contents of metallic elements by X-ray fluorescence—Fusion method
WITHDRAWN published on 10.1.2011
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GB/T 26052-2010
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Tubular welding rods of tungsten carbide
WITHDRAWN published on 10.1.2011
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GB/T 26053-2010
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Spray welding powder for cemented carbide
WITHDRAWN published on 10.1.2011
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GB/T 26055-2010
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Reproduced tungsten carbide powder
WITHDRAWN published on 10.1.2011
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GB/T 26063-2010
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Beryllium aluminum alloy
WITHDRAWN published on 10.1.2011
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GB/T 26068-2010
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Test method for carrier recombination lifetime in silicon wafers by non-contact measurement of photoconductivity decay by microwave reflectance
WITHDRAWN published on 10.1.2011
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GB/T 26069-2010
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Specification for silicon annealed wafers
WITHDRAWN published on 10.1.2011
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GB 2607-1987
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Silica refractory bricks for glass furnaces
WITHDRAWN published on 1.1.1987
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GB/T 26071-2010
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Mono-crystalline silicon as cut slices for photovoltaic solar cells
WITHDRAWN published on 10.1.2011
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