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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
Three-strand polyethylene monofilament ropes
WITHDRAWN published on 6.11.1989
Selected format:Ropes and cordage—Equivalence between natural fibre ropes and man-made fibre ropes for use in the mooring of vessels
WITHDRAWN published on 6.11.1989
Selected format:Round wire concentric lay overhead electrical stranded conductors
WITHDRAWN published on 30.12.1999
Selected format:Round wire concentric lay overhead electrical stranded conductors
WITHDRAWN published on 30.6.2008
Selected format:General principles for low-temperature insulation of equipment and pipes
WITHDRAWN published on 1.1.1989
Selected format:General principles for low-temperature insulation technique of equipments and pipes
WITHDRAWN published on 28.11.1996
Selected format:Upper confidence limits of coefficient of variation for normal distribution
WITHDRAWN published on 22.11.1989
Selected format:Precision of test methods—Check the acceptability of test results obtained under repeatability or reproducibility conditions and to determine final test results
WITHDRAWN published on 22.11.1989
Selected format:Graduation for building physical performances of PVC windows
WITHDRAWN published on 30.11.1989
Selected format:Technical requirements on mechanical and weathering properties for PVC windows
WITHDRAWN published on 30.11.1989
Selected format:Latest update: 2025-11-12 (Number of items: 2 243 625)
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