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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
Paper, board and pulp—Determination of water soluble chlorides (AgNO3, method)
WITHDRAWN published on 25.6.1996
Selected format:Paper, board and pulp—Determination of water soluble sulphates (Conductimetric titration method)
WITHDRAWN published on 25.6.1996
Selected format:Directives on the layout of floating aids to navigation
WITHDRAWN published on 20.7.2011
Selected format:Satellite navigation based ship monitoring and management system—Part 1:System structure and function definition
WITHDRAWN published on 20.7.2011
Selected format:Satellite navigation based ship monitoring and management system—Part 2:Information transfer protocol
WITHDRAWN published on 20.7.2011
Selected format:Satellite navigation based ship monitoring and management system—Part 3:Technical requirements for shipborne terminal
WITHDRAWN published on 20.7.2011
Selected format:-
WITHDRAWN published on 1.1.1981
Selected format:Paper—Determination of transparent
WITHDRAWN published on 7.8.1993
Selected format:Paper—Determination of transmittance—Diffuse reflectance measurement
WITHDRAWN published on 17.12.2013
Selected format:Paper and board—Qualitative analysis of mineral filler and mineral coating—SEM/EDAX method
WITHDRAWN published on 7.8.1993
Selected format:Latest update: 2026-03-26 (Number of items: 2 269 551)
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