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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
Personal warning devices for X and gamma radiation
WITHDRAWN published on 20.4.1993
Selected format:Electrical capacitance level meter
WITHDRAWN published on 20.4.1993
Selected format:Guide for optimization of radiation protection
WITHDRAWN published on 20.4.1993
Selected format:Determination of carbon disulfide content in benzene
WITHDRAWN published on 29.3.1993
Selected format:Determination of thiophene content in benzene
WITHDRAWN published on 29.3.1993
Selected format:Roughing end mill with parallel shank types and dimensions
WITHDRAWN published on 17.4.1993
Selected format:Roughing end mill with flatted parallel shank types and dimensions
WITHDRAWN published on 17.4.1993
Selected format:Roughing end mill with morse taper shank types and dimensions
WITHDRAWN published on 17.4.1993
Selected format:Roughing end mills technical specifications
WITHDRAWN published on 17.4.1993
Selected format:Flat body keyway broach types and dimensions
WITHDRAWN published on 17.4.1993
Selected format:Latest update: 2026-04-10 (Number of items: 2 271 455)
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