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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
Voltage ratings of DC electric traction system
Standard published on 31.12.2021
Selected format:Food nutritional fortification substance - Calcined calcium
Standard published on 19.1.2009
Selected format:Conventional moisture regains of textile materials
Standard published on 15.3.2018
Selected format:Determination of moisture content and moisture regain of textile--Oven-drying method
Standard published on 9.10.1997
Selected format:Determination of appearance quality of yarns made of cotton or man-made fibres,or their blends by winding on the black board - Part 1:comprehensive assessment
Standard published on 23.5.2008
Selected format:Determination of appearance quality of yarns made of cotton or man-made fibersor their blends by winding on the black board - Part 2: individual assessment
Standard published on 23.5.2008
Selected format:Xining wool
Standard published on 10.3.2006
Selected format:China Standard Serial Numbering
Standard published on 14.11.2001
Selected format:China standard serial number—Part 1: China serial number
Standard published on 7.6.2018
Selected format:China standard serial number—Part 2:ISSN
Standard published on 15.3.2018
Selected format:Latest update: 2026-06-12 (Number of items: 2 281 969)
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