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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
Determination of total or effective thickness of thin surface hardened layers of steel parts
WITHDRAWN published on 24.6.1988
Selected format:Testing method for working zone of heat treating furnace
WITHDRAWN published on 25.6.1988
Selected format:Testing method for work zone of Heat treatment furnace
WITHDRAWN published on 25.11.2003
Selected format:Testing method for working zone of heat treatment furnace
WITHDRAWN published on 3.9.2012
Selected format:Terminology of forging dies and elements
WITHDRAWN published on 24.6.1988
Selected format:Terminology of forging dies
WITHDRAWN published on 6.6.2008
Selected format:Feed additive—Vitamin E(material)
WITHDRAWN published on 24.10.2000
Selected format:Feed additive—Vitamin E
WITHDRAWN published on 31.12.2008
Selected format:Feed additive—Vitamin A/D3 beadlets
WITHDRAWN published on 20.6.1988
Selected format:Welding wire and rods of copper and copper alloys
WITHDRAWN published on 24.6.1988
Selected format:Latest update: 2024-09-05 (Number of items: 2 346 132)
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