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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
Information processing--Text and office systems--Office Document Architecture (ODA) and interchange format--Part 6:Character content architectures
Standard published on 10.4.1996
Selected format:Information processing--Text and office systems--Office Document Architecture (ODA) and interchange format--Part 7:Raster graphics content architectures
Standard published on 10.4.1996
Selected format:Information processing--Text and office systems--Office Document Architecture(ODA)and interchange format--Part 8:Geometric graphics content architectures
Standard published on 21.12.1995
Selected format:General specification for land mobile communication system equipment using multi-channel access techniques without a central controller
Standard published on 21.12.1995
Selected format:Basic multiplexing structure for synchronous digital hierarchy signals
Standard published on 7.10.2008
Selected format:Requirements for Synchronous Digital hierarchy (SDH) Optical Fiber Cable Line Systems
Standard published on 10.4.2008
Selected format:Technical specification measuring method of broadcasting audio channel
Standard published on 21.12.1995
Selected format:Compilation specifications and cartographic symbols for 1250000 topographic maps
Standard published on 21.12.1995
Selected format:Power quality - Frequency deviation for power system
Standard published on 18.6.2008
Selected format:Higher performance protocal for the standard digital interface for programmable instrumentation - General
Standard published on 30.6.2008
Selected format:Latest update: 2026-06-09 (Number of items: 2 281 484)
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