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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
Arc welding equipment—Part 5:Wire feeders
WITHDRAWN published on 17.5.2005
Selected format:Arc welding equipment—Part 5:Wire feeders
WITHDRAWN published on 12.11.2013
Selected format:Arc welding equipment—Part 6:Limited duty manual metal arc welding power sources
WITHDRAWN published on 19.6.2008
Selected format:Arc welding equipment—Part 7:Torches
WITHDRAWN published on 17.5.2005
Selected format:Arc welding equipment—Part 7:Torches
WITHDRAWN published on 12.11.2013
Selected format:The method of determining substitutional carbon content in silicon by infrared absorption
WITHDRAWN published on 1.1.1983
Selected format:Test method for substitutional atomic carbon content of silicon by infrared absorption
WITHDRAWN published on 22.12.1997
Selected format:Test method for substitutional atomic carbon concent of silicon by infrared absorption
WITHDRAWN published on 30.10.2009
Selected format:Discharge standard of water pollutants for phosphate fertilizer industry
WITHDRAWN published on 12.6.1995
Selected format:Discharge standard of water pollutants for caustic alkali and polyvinyl chloride industry
WITHDRAWN published on 12.6.1995
Selected format:Latest update: 2026-01-21 (Number of items: 2 257 297)
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