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Standards GB - Chinese national standards - Page 5109
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 7247.8-2025
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Safety of laser products—Part 8: Guidelines for the safe use of lasers on humans
Execute Date: august 2026
Standard published on 1.8.2025
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GB/T 7247.9-2016
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Safety of laser products—Part 9: Compilation of maximum permissible exposure to incoherent optical radiation
Standard published on 29.8.2016
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GB/T 7249-2016
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Maximum lamp outlines for incandescent lamps
Standard published on 25.4.2016
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GB/T 725-2008
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Internal combustion engines - Nomenclature and code of designations
Standard published on 3.6.2008
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GB/T 7251.1-2023
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Low-voltage switchgear and controlgear assemblies—Part 1: General rules
Standard published on 6.8.2023
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GB/T 7251.10-2025
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Low-voltage switchgear and controlgear assemblies—Part 10: Guidance to specifying assemblies
Standard published on 1.8.2025
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GB/T 7251.2-2023
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Low-voltage switchgear and controlgear assemblies—Part 2:Power switchgear and controlgear assemblies
Standard published on 6.8.2023
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GB/T 7251.3-2017
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Low-voltage switchgear and controlgear assemblies—Part 3: Distribution boards intended to be operated by ordinary personsDBO
Standard published on 1.11.2017
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GB/T 7251.4-2017
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Low-voltage switchgear and controlgear assemblies—Part 4: Particular requirements for assemblies for construction sites (ACS)
Standard published on 1.11.2017
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GB/T 7251.5-2017
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Low-voltage switchgear and controlgear assemblies—Part 5: Assemblies for power distribution in public networks
Standard published on 31.7.2017
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