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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
General test methods for hearing protectors
Standard published on 5.10.2025
Selected format:Aircraft—Nickel-chromium and nickel-aluminium thermocouple extension cables—Part 1:Conductors general requirements and tests
Standard published on 5.10.2025
Selected format:Aircraft—Nickel-chromium and nickel-aluminium thermocouple extension cables—Part 2:Terminations general requirements and tests
Standard published on 5.10.2025
Selected format:Aircraft—Nickel-chromium and nickel-aluminium thermocouple extension cables—Part 3Crimp type ring terminal ends dimensions
Standard published on 5.10.2025
Selected format:Aircraft—Nickel-chromium and nickel-aluminium thermocouple extension cables—Part 4: Crimp-type butt connectors dimensions
Standard published on 5.10.2025
Selected format:Video and image analysis system for public security—Part 1:General technical requirements
Standard published on 5.10.2025
Selected format:Video and image analysis system for public security—Part 2:Technical requirements for analysis and description of video and image content
Standard published on 5.10.2025
Selected format:Video and image analysis system for public security—Part 3:Technical requirements for video and image enhancement
Standard published on 5.10.2025
Selected format:Video and image analysis system for public security—Part 4:Technical requirements for video and image retrieval
Standard published on 5.10.2025
Selected format:Video and image analysis system for public security—Part 5:Testing specifications
Standard published on 5.10.2025
Selected format:Latest update: 2026-11-10 (Number of items: 2 209 227)
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