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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
The general rules of astronautic solar cell calibration
WITHDRAWN published on 18.6.1986
Selected format:Test method for Micronaire value of cotton fibres
WITHDRAWN published on 4.11.1992
Selected format:Test method for Micronaire value of cotton fibers
WITHDRAWN published on 28.12.2004
Selected format:Test method for Micronaire value of cotton fibers
WITHDRAWN published on 21.5.2008
Selected format:Test method for percentage of trash content in raw cotton
WITHDRAWN published on 4.11.1992
Selected format:Test method for percentage of trash content in raw cotton
WITHDRAWN published on 23.1.2007
Selected format:Test method for percentage of trash content in raw cotton
WITHDRAWN published on 14.11.2012
Selected format:-
WITHDRAWN published on 1.1.1979
Selected format:Specifications for the design of grounding (earthing) of industrial and civil electric system(Trial)
WITHDRAWN published on 7.11.1983
Selected format:Slotted cheese head screws
WITHDRAWN published on 26.9.2000
Selected format:Latest update: 2026-06-26 (Number of items: 2 284 409)
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