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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
General purpose screw threads--Limits of sizes for commercial bolt and nut threads--Medium quality
WITHDRAWN published on 25.4.1988
Selected format:General purpose screw threads--Limits of sizes for commercial bolt and nut threads--Coarse quality
WITHDRAWN published on 25.4.1988
Selected format:General specification for magnetic particle clutch
WITHDRAWN published on 6.5.1988
Selected format:Bismuth
WITHDRAWN published on 17.10.1995
Selected format:Terms of drilling engineering
WITHDRAWN published on 5.5.1988
Selected format:Hollow shaped steel door
WITHDRAWN published on 6.5.1988
Selected format:Solid shaped steel door
WITHDRAWN published on 6.5.1988
Selected format:Mechanical test methods for windows
WITHDRAWN published on 6.5.1988
Selected format:Safety requirements for radio transmitting equipment
WITHDRAWN published on 27.4.1988
Selected format:Rolling bearings—Accessories—Part 1:Tapered sleeves
WITHDRAWN published on 5.7.2006
Selected format:Latest update: 2024-09-08 (Number of items: 2 346 102)
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