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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
Specifications for high temperature test chambers
Standard published on 30.6.2008
Selected format:Specifications for low air pressure test chambers
Standard published on 1.12.2010
Selected format:General specification of optical components for the scale and surface defects
Standard published on 30.9.2009
Selected format:Vacuum coating plant generic specification
Standard published on 21.11.2011
Selected format:Laboratory pH meter
Standard published on 18.5.2005
Selected format:Direct acting electrical measuring recorders
Standard published on 31.3.1989
Selected format:Image quality of optical systems method of determination
Standard published on 30.9.2009
Selected format:Stainless steel - Determination of multi-element contents - Spark discharge atomic emission spectrometric method (Routine method)
Standard published on 11.9.2008
Selected format:Liquefied petroleum gases
Standard published on 30.12.2011
Selected format:
Liquefied petroleum gases
Execute Date: november 2026
Standard published on 5.10.2025
Selected format:Latest update: 2026-03-17 (Number of items: 2 266 788)
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