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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
Technical specifications for land seismic exploration data processing
WITHDRAWN published on 12.5.2017
Selected format:Analogue direct current signals for industrial process measurement and control instruments
WITHDRAWN published on 31.3.1989
Selected format:Concentrated nitric acid
WITHDRAWN published on 1.1.1984
Selected format:Concentrated nitric acid
WITHDRAWN published on 24.2.1984
Selected format:Concentrated nitric acid for industrial use
WITHDRAWN published on 24.9.2002
Selected format:Dilute nitric acid for industrial use
WITHDRAWN published on 24.9.2002
Selected format:Analogue direct voltage signals for industrial process measurement and control instruments
WITHDRAWN published on 31.3.1989
Selected format:Optical dividing head
WITHDRAWN published on 1.1.1982
Selected format:Optical dividing head
WITHDRAWN published on 4.1.1995
Selected format:Rims series for tractors, agricultural and forestry machines
WITHDRAWN published on 28.8.2000
Selected format:Latest update: 2026-01-23 (Number of items: 2 257 393)
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