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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
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WITHDRAWN published on 1.1.1979
Selected format:General purpose parallel lathes—Parameters
WITHDRAWN published on 3.5.1993
Selected format:Methods for magnetic particle testing
WITHDRAWN published on 14.12.1995
Selected format:Non-destructive testing—Magnetic particle testing—Part 1:General principles
WITHDRAWN published on 19.9.2005
Selected format:Non-destructive testing—Magnetic particle testing—Part 2:Detection media
WITHDRAWN published on 19.9.2005
Selected format:Non-destructive testing—Magnetic particle testing—Part 3:Equipment
WITHDRAWN published on 19.9.2005
Selected format:Examination for helium leak detecting
WITHDRAWN published on 14.12.1995
Selected format:Thermal fatigue testing method for hot die steel
WITHDRAWN published on 13.12.1995
Selected format:Sheet metal formability and test methods—Formability and indexes
WITHDRAWN published on 13.12.1995
Selected format:Sheet metal formability and test methods—General test rules
WITHDRAWN published on 13.12.1995
Selected format:Latest update: 2025-11-11 (Number of items: 2 243 547)
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