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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
The specification for marine observation—Part 2 :Offshore observation
Standard published on 25.3.2019
Selected format:The specification for marine observation—Part 3 :Surface and subsurface buoy-based observation
Standard published on 31.12.2021
Selected format:The specification for marine observation—Part 4:Shore based radar observation
Standard published on 31.12.2021
Selected format:The specification for marine observation—Part 5:Satellite remote sensing observation
Standard published on 31.12.2021
Selected format:The specification for marine observation—Part 6:Data processing and quality control of marine observational data
Standard published on 31.12.2021
Selected format:Identification cards—Physical characteristics
Standard published on 12.10.2022
Selected format:Earth-moving machinery - Service instrumentation
Standard published on 3.6.2008
Selected format:General specification of signal pistol
Standard published on 13.1.1994
Selected format:The specifications for digital audio sourcecoding
Standard published on 26.1.1994
Selected format:Laboratory animal—Microbiological and parasitical standards and monitoring
Standard published on 29.12.2022
Selected format:Latest update: 2026-04-20 (Number of items: 2 274 419)
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