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Standards GB - Chinese national standards - Page 485
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 15000.6-1996
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Directives for the work of reference materials(6)--General rules for package of certified reference materials
Standard published on 4.11.1996
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GB/T 15000.7-2021
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Directives for the work of reference materials—Part 7General requirements for the competence of reference material producters
Standard published on 30.4.2021
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GB/T 15000.8-2023
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Directives for the work of reference materials—Part 8:Good practice in using reference materials
Standard published on 7.9.2023
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GB/T 15000.9-2026
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Directives for the work of reference materials—Part 9Approaches for the production of reference materials with qualitative properties
Standard published on 27.2.2026
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GB/T 15006-2009
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General rules of dimensionsshape,surface quality, test method and inspection for elastic alloys
Standard published on 25.6.2009
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GB/T 15007-2017
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Designations of corrosion-resistant alloy
Standard published on 7.9.2017
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GB/T 15007-2017E
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Designations of corrosion-resistant alloy
Standard published on 7.9.2017
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GB/T 15008-2025
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Corrosion resistant alloy bars
Standard published on 29.8.2025
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GB/T 15014-2008
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Physical quantity terminologies and definitions of elastic alloy, expansion alloy, thermostat metal, resistance alloy
Standard published on 5.8.2008
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GB/T 15018-1994
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Designations of precision alloys
Standard published on 4.4.1994
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