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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
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WITHDRAWN published on 13.10.1976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WITHDRAWN published on 1.1.1983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WITHDRAWN published on 5.9.1988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WITHDRAWN published on 5.9.1988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:Test method for linear density of cotton fibres—Cut middles method
WITHDRAWN published on 12.6.1985
Selected format:Test method for breaking strength of cotton fibres—Flat bundle method
WITHDRAWN published on 12.6.1985
Selected format:Test method for moisture regain in raw cotton by oven drying
WITHDRAWN published on 12.6.1985
Selected format:Test method for moisture regain in raw cotton by electrical moisture meter
WITHDRAWN published on 12.6.1985
Selected format:Test method for moisture regain in raw cotton—Electrical moisture meter
WITHDRAWN published on 23.4.2009
Selected format:Test method for fault in raw cotton
WITHDRAWN published on 12.6.1985
Selected format:Latest update: 2026-06-15 (Number of items: 2 282 497)
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