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Standards GB - Chinese national standards - Page 5080
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 6247.3-2013
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Rock drilling machines and portable power toolsTerminologyPart 3: Accessories,parts and mechanism
Standard published on 31.12.2013
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GB/T 6247.4-2013
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Rock drilling machines and portable power toolsTerminologyPart 4: Performance test
Standard published on 31.12.2013
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GB 6249-2025
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Regulations for environmental radiation protection of nuclear power plant
Standard published on 24.1.2025
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GB/T 625-2024
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Chemical reagent—Sulfuric acid
Standard published on 29.9.2024
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GB/T 6252-1986
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Type specification for variable tuning capacitors--Type A in electronic equipments
Standard published on 10.4.1986
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GB/T 6253-1986
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Type specification for variable trimmer capacitors--Type B in electronic equipments
Standard published on 10.4.1986
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GB/T 6254-1986
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Type specification for variable preset capacitors--Type C in electronic equipments
Standard published on 10.4.1986
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GB/T 6255-2001
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General specification for space-charge controlled tubes
Standard published on 2.11.2001
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GB/T 6256-1986
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Blank detail specification forindustrial heating triodes
Standard published on 14.4.1986
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GB/T 6257-2015
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Blank detail specification for transmitting tubes
Standard published on 11.9.2015
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