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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
Non-destructive testing—Test methods for leak detection by means of acoustic emission
WITHDRAWN published on 12.5.2017
Selected format:Test method for void contentof carbon fiber reinforced plastics by microscopy
WITHDRAWN published on 28.12.1982
Selected format:Test method for volume content of fiber of carbon fiber reinforced plastics by microscopy
WITHDRAWN published on 1.1.1982
Selected format:Test method for fiber volume content of carbon fiber reinforced plastics
WITHDRAWN published on 26.9.1996
Selected format:Technical requirements and detecting method of audio and video programfor digital publication
WITHDRAWN published on 12.5.2017
Selected format:Glossary of terms for railway locomotive Names of component parts for diesel engine
WITHDRAWN published on 25.10.2000
Selected format:Glossary of terms for railway locomotives--Nomenclature of electric traction equipments
WITHDRAWN published on 1.1.1984
Selected format:Glossary of terms for railway locomotive. Terms of steam locomotive
WITHDRAWN published on 3.3.1986
Selected format:Glossary of terms for railway locomotive. Terms of component parts for steam locomotive
WITHDRAWN published on 3.3.1986
Selected format:Glossary of terms for railway locomotive Names of component parts for hydraulic transmission system
WITHDRAWN published on 25.10.2000
Selected format:Latest update: 2026-01-23 (Number of items: 2 257 393)
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