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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
Sampling method for testing of cotton fibers
WITHDRAWN published on 14.11.2012
Selected format:Test method for length of cotton fibres—Roller analyser
WITHDRAWN published on 12.6.1985
Selected format:Test method for length of cotton fibres—Part 1:Roller analyser
WITHDRAWN published on 10.3.2006
Selected format:Test method for length of cotton fibres—Photoelectric length method
WITHDRAWN published on 12.6.1985
Selected format:Test method for maturity of cotton fibres—Lumen and wall thickness constract method
WITHDRAWN published on 12.6.1985
Selected format:Test method for maturity of cotton fibres—Polarized apparatus method
WITHDRAWN published on 4.11.1992
Selected format:Nuts--Technical requirements
WITHDRAWN published on 13.10.1976
Selected format:Specifications for the design of industrial and civil overhead transmission lines.(?35kV)(Trial)
WITHDRAWN published on 1.1.1983
Selected format:Chemical reagent--General method for the determination of arsenic
WITHDRAWN published on 5.9.1988
Selected format:Chemical reagent General method for the determination of arsenic (AgDDTC)
WITHDRAWN published on 5.9.1988
Selected format:Latest update: 2026-04-24 (Number of items: 2 274 650)
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