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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
Decompression procedures for nitrox or air saturation-air excursion diving
Standard published on 17.9.1999
Selected format:Dimensions series of river/coastal cargo ship
Standard published on 28.12.2023
Selected format:Pure neon,high purity neon and ultra pure neon
Standard published on 29.8.2025
Selected format:Packaging container - Tamper-evident plastic closure
Standard published on 23.12.2010
Selected format:Cylinder valve for non-refillable steel welded industry cylinder
Standard published on 25.6.2009
Selected format:
Cylinder valve for non-refillable steel welded cylinder
Execute Date: february 2027
Standard published on 30.7.2026
Selected format:Gear—Surface temper etch inspection after grinding,chemical method
Standard published on 6.8.2023
Selected format:Jet fuel No.2
Standard published on 23.11.1979
Selected format:Flat head riveted nuts
Standard published on 11.10.1999
Selected format:Countersunk head riveted nuts
Standard published on 11.10.1999
Selected format:Latest update: 2026-09-04 (Number of items: 2 300 131)
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