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Standards GB - Chinese national standards - Page 5095
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/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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GB/T 642-1999
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Chemical reagent--Potassium dichromate
Standard published on 16.9.1999
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GB/T 6420-2017
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Freight trailer series pedigree
Standard published on 14.10.2017
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GB/T 6422-2009
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Testing guide for energy consumption of equipment
Standard published on 11.3.2009
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GB/T 6424-2021
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Flat plate solar collectors
Standard published on 31.12.2021
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GB/T 6425-2008
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Nomenclature for thermal analysis
Standard published on 27.5.2008
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GB/T 6426-2025
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Quasi-static test method for ferroelectric hysteresis loop in ferroelectric ceramics
Standard published on 29.8.2025
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