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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
Maximum projectable image area on35mm motion-picture film--Position and dimensions
Standard published on 17.10.2000
Selected format:Technical requirements for video and image information sharing and exchanging network for public security
Standard published on 5.10.2025
Selected format:General requirements for video and image information network sharing application for public security
Standard published on 5.10.2025
Selected format:Technical requirements for video and image information integrated application system for public security
Standard published on 5.10.2025
Selected format:Technical requirements for interfaces for video and image information integrated application system for public security
Standard published on 5.10.2025
Selected format:Technical requirements for boundary security interaction system for video surveillance for public security
Standard published on 5.10.2025
Selected format:Testing specifications for operation and maintenance management platform software of video and image information networking application for public security
Standard published on 5.10.2025
Selected format:General specification for self-driven in-line inspection robot
Standard published on 5.10.2025
Selected format:Technical requirements and test methods for reliability of mobile telecommunication terminal
Standard published on 5.10.2025
Selected format:Requirements and test methods for performance of geodetic antenna for BeiDou navigation satellite system
Standard published on 31.10.2025
Selected format:Latest update: 2026-08-26 (Number of items: 2 298 418)
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