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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
Metallic powders—Determination of hydrogen-reducible oxygen content
WITHDRAWN published on 9.4.2002
Selected format:Guide to the use of variable capacitorsin electronic equipment
WITHDRAWN published on 27.2.1984
Selected format:Class 1~5 weights
WITHDRAWN published on 27.2.1984
Selected format:Weights
WITHDRAWN published on 31.10.2011
Selected format:Components of injection mould for plastics--Ejector pins
WITHDRAWN published on 27.2.1984
Selected format:Components of injection mould for plastics--Support pillars
WITHDRAWN published on 27.2.1984
Selected format:Components of injection mould for plastics--Locating elements
WITHDRAWN published on 27.2.1984
Selected format:Components of injection mould for plastics--Straight guide bushes
WITHDRAWN published on 27.2.1984
Selected format:Components of injection mould for plastics--Guide bushes with head
WITHDRAWN published on 27.2.1984
Selected format:Components of injection mould for plastics--Guide pillars with head
WITHDRAWN published on 27.2.1984
Selected format:Latest update: 2025-11-09 (Number of items: 2 243 571)
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