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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
Standard test method for differential thermal analysis of row materials of ceramic
Standard published on 13.6.2002
Selected format:Lifting nuts
Standard published on 24.6.1988
Selected format:Regulations for compilation and submission of the ship""s finished documents
Standard published on 31.10.2025
Selected format:Chemical reagent - Ammonia solution
Standard published on 25.10.2007
Selected format:
Chemical reagent—Ammonia solution
Execute Date: september 2026
Standard published on 27.2.2026
Selected format:Micrometer for measuring pipe wall thicknesses
Standard published on 11.7.2022
Selected format:Pointed-contact micrometer with conical tips
Standard published on 14.5.2018
Selected format:Internal micrometer with three-point contact
Standard published on 14.5.2018
Selected format:Vernierdial and digital display universal bevel protractors
Standard published on 31.10.2025
Selected format:Vernier, dial and digital indicating gear tooth callipers
Standard published on 2.2.2008
Selected format:Latest update: 2026-08-09 (Number of items: 2 292 444)
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