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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
Electromagnetic compatibility—Guide to the drafting of electromagnetic compatibility standards
WITHDRAWN published on 5.11.2001
Selected format:Marine bronze male threaded PN160 air stop valves
WITHDRAWN published on 1.1.1984
Selected format:Determination of ignition temperature of coal
WITHDRAWN published on 12.11.2001
Selected format:Specifications of anthracite used as PIC for blast furnace
WITHDRAWN published on 12.11.2001
Selected format:Specifications of coal used in pulverized coal injection (PCI)
WITHDRAWN published on 29.7.2008
Selected format:Names of Chinese main imported woods
WITHDRAWN published on 12.11.2001
Selected format:Safety code for wood-based panel machinery
WITHDRAWN published on 12.11.2001
Selected format:Chain saws—Measurement of cutting rate and fuel consumption—Engineering method
WITHDRAWN published on 12.11.2001
Selected format:Terminology of refrigeration
WITHDRAWN published on 12.11.2001
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WITHDRAWN published on 1.1.1980
Selected format:Latest update: 2025-12-24 (Number of items: 2 253 093)
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