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Standards GB - Chinese national standards - Page 878
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 18039.2-2000
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Electromagnetic compatibility—Environment—Assessment of the emission levels in the power supply of industrial plants as regards low-frequency conducted disturbances
Standard published on 3.4.2000
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GB/T 18039.3-2017
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Electromagnetic compatibility—Environment—Compatibility levels for low-frequency conducted disturbances and signalling in public low-voltage power supply systems
Standard published on 29.12.2017
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GB/T 18039.4-2017
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Electromagnetic compatibility—Environment—Compatibility levels in industrial plants for low-frequency conducted disturbances
Standard published on 29.12.2017
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GB/Z 18039.5-2003
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Electromagnetic compatibility--Environment--Electromagnetic environment for low-frequency conducted disturbances and signalling in public power supply systems
Standard published on 21.2.2003
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GB/Z 18039.6-2005
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Electromagnetic compatibility—Environment—Low frequency magnetic fields in various environments
Standard published on 6.2.2005
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GB/Z 18039.7-2011
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Electromagnetic compatibility—Environment—Voltage dips and short interruptions on public electric power supply systems with statistical measurement results
Standard published on 30.12.2011
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GB/T 18039.8-2012
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Electromagnetic compatibility - Environment - Description of HEMP environment - Conducted disturbance
Standard published on 5.11.2012
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GB/T 18039.9-2013
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Electromagnetic compatibility - Environment - Compatibility levels for low-frequency conducted disturbances and signaling in public medium-voltage power supply systems
Standard published on 12.11.2013
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GB/T 1804-2000
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General tolerances--Tolerances for linear and angular dimensions without individual tolerance indications
Standard published on 24.7.2000
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GB/T 18041-2025
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Civil aviation cargo transportation terminology
Standard published on 31.12.2025
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