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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
Bursting discs specification for gas cylinder
WITHDRAWN published on 22.7.1997
Selected format:Food grade spirulina powder
WITHDRAWN published on 24.7.1997
Selected format:Vulcanized rubber—Determination of the insulation resistivity
WITHDRAWN published on 12.12.1992
Selected format:Glass—Determination of coefficient of mean linear thermal expansion
WITHDRAWN published on 24.7.1997
Selected format:Measurement of metallic coating thickness X—ray spectrometric methods
WITHDRAWN published on 25.7.1997
Selected format:Normalizing and annealing of steel parts
WITHDRAWN published on 25.7.1997
Selected format:Quenching and tempering of steel parts
WITHDRAWN published on 25.7.1997
Selected format:High—voltage alternating current switch-fuse combinations
WITHDRAWN published on 28.7.1997
Selected format:High-voltage test techniques Part 1:General test requirements
WITHDRAWN published on 28.7.1997
Selected format:High-voltage test techniques Part 2:Measuring systems
WITHDRAWN published on 28.7.1997
Selected format:Latest update: 2024-05-17 (Number of items: 2 902 148)
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