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Standards GB - Chinese national standards - Page 877
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 18032-2000
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The inspecting method of AB microscopic defect in gallium arsenide single crystal
Standard published on 3.4.2000
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GB/T 18033-2017
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Seamless copper tubes for water and gas
Standard published on 12.7.2017
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GB/T 18034-2023
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Specification for the platinum rhodium thermocouple thin wires used in rapid temperature measuring thermocouple
Standard published on 23.5.2023
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GB/T 18035-2000
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Precious metals and its alloys designation system
Standard published on 3.4.2000
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GB/T 18036-2008
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The test method of thermo-emf for platinum
Standard published on 31.3.2008
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GB/T 18037-2025
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Basic technical requirements and design guidelines for live working tools, equipment and devices
Standard published on 31.10.2025
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GB/T 18038-2008
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General specification of microprocessor-based protection equipment for electrified railway traction power supply system
Standard published on 24.9.2008
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GB/Z 18039.1-2019
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Electromagnetic compatibility—Environment—Description and classification of electromagnetic environments
Standard published on 4.6.2019
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GB/T 18039.10-2018
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Electromagnetic compatibility(EMC)—Environment—Description of HEMP environment—Radiated disturbance
Standard published on 14.5.2018
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GB/T 18039.11-2025
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Electromagnetic compatibility—Environment—Part 11: Classification of HEMP environments
Standard published on 30.5.2025
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