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Standards GB - Chinese national standards - Page 275
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 13386-2009
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Technical requirements for hot working of sea going transport ships
Standard published on 31.3.2009
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GB/T 13387-2009
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Test method for measuring flat length wafers of silicon and other electronic materials
Standard published on 30.10.2009
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GB/T 13388-2009
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Method for measuring crystallographic orientation of flats on single-crystal silicon slices and wafers by X-ray techniques
Standard published on 30.10.2009
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GB/T 13389-2014
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Practice for conversion between resistivity and dopant density for boron-doped, phosphorus-doped, and arsenic-doped silicon
Standard published on 31.12.2014
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GB/T 1339-1988
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Self-locking nutsreduced hexagon
Standard published on 22.12.1988
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GB/T 13390-2008
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Metallic powder-Determination of the specific surface area - Method of nitrogen adsorption
Standard published on 31.3.2008
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GB/T 13391-2009
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Division and evaluation for catering enterperises grade
Standard published on 30.9.2009
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GB 13392-2023
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Vehicle marking of dangerous goods for road transportation
Standard published on 8.9.2023
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GB/T 13393-2008
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Guide to acceptance sampling inspection
Standard published on 6.8.2008
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GB/T 13395-2008
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Regulation of hot washing for electric power apparatus
Standard published on 24.9.2008
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