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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
Steel plates for building structure
WITHDRAWN published on 22.9.2005
Selected format:Steel plate for building structure
WITHDRAWN published on 10.12.2015
Selected format:-
WITHDRAWN published on 1.1.1989
Selected format:Automatic meter reading system—Part 3-1:Application layer data exchange protocols—Object identification system
WITHDRAWN published on 11.10.2007
Selected format:Automatic meter reading system—Part 3-2:Application layer data exchange protocols—Interface classes
WITHDRAWN published on 11.10.2007
Selected format:Automatic meter reading system—Part 3-3:Application layer data exchange protocol—COSEM application layer
WITHDRAWN published on 11.10.2007
Selected format:Jelly
WITHDRAWN published on 29.9.2005
Selected format:Acoustics--Measurement of sound insulation in buildings and of building elements--Part 2:Determination,verification and application of precision data
WITHDRAWN published on 9.9.2005
Selected format:Acoustics—Measurement of sound insulation in buildings and of building elements—Part 7:Field measurements of impact sound insulation of floors
WITHDRAWN published on 29.7.2005
Selected format:Automatic meter reading system lower layer communication protocol--Part 2:Use of area networks on twisted pair with carrier signalling
WITHDRAWN published on 9.9.2005
Selected format:Latest update: 2025-12-25 (Number of items: 2 253 105)
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