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Standards GB - Chinese national standards - Page 315
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 13675-2021
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Aero-derivative gas turbines preparation for packing and shipping
Standard published on 11.10.2021
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GB/T 13679-2016
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Manganese base brazing filler metal
Standard published on 13.10.2016
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GB/T 13680-13681-1992
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Standard published on 1.1.1992
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GB/T 13680-1992
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Square weld nuts
Standard published on 22.9.1992
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GB/T 13681-1992
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Hexagon weld nuts
Standard published on 22.9.1992
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GB/T 13681.2-2017
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Hexagon weld nuts with flange
Standard published on 29.12.2017
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GB/T 13682-1992
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Axial load fatigue testing for threadedfasteners
Standard published on 22.9.1992
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GB/T 13683-1992
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Pins and grooved pins--Shear test
Standard published on 22.9.1992
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GB/T 13689-2007
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Water for industrial circulating cooling system and boiler - Determination of copper
Standard published on 13.8.2007
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GB 13691-2008
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Code for the dust protecting technique of the ceramic production
Standard published on 23.12.2008
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