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Standards GB - Chinese national standards - Page 5062
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 6406-2016
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Superabrasive—Checking the grain size
Standard published on 13.10.2016
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GB/T 6408-2018
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Superabrasive—Cubic boron nitride
Standard published on 13.7.2018
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GB/T 641-2011
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Chemical reagent - Potassium peroxydisulfate
Standard published on 12.5.2011
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GB/T 6411-2008
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A series of size of knitted underwear
Standard published on 18.6.2008
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GB/T 6412-2009
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Test method for household coal and stoves
Standard published on 30.10.2009
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GB/Z 6413.1-2003
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Calculation of scuffing load capacity of cylindricalbevel and hypoid gears--Part 1:Flash temperature method
Standard published on 25.11.2003
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GB/Z 6413.2-2003
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Calculation of scuffing load capacity of cylindricalbevel and hypoid gears--Part 2:Integral temperature method
Standard published on 25.11.2003
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GB/T 6417.1-2005
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Classification and explanation of imperfections in fusion welded joints
Standard published on 10.8.2005
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GB/T 6417.2-2005
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Classification and explanation of imperfections in pressure welded joints
Standard published on 10.8.2005
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GB/T 6418.1-2025
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Copper base brazing filler metals—Part 1Solid brazing filler metals
Standard published on 28.3.2025
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