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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
Curvilinear toothed synchronous belt drives
WITHDRAWN published on 15.11.2009
Selected format:Troilite and sulphur concentrates--Determination of effective sulphur content
WITHDRAWN published on 1.1.1981
Selected format:Development of service standards—Recommendations for addressing consumer issues
WITHDRAWN published on 15.11.2009
Selected format:Application guide for electric safety of low-voltage switchgear and controlgear assemblies Part 1:Switchgear assemblies
WITHDRAWN published on 30.11.2009
Selected format:Guidance on the measurement of wettability of insulator surfaces
WITHDRAWN published on 30.11.2009
Selected format:Guide for the design and application of synchronous motors for converter supply
WITHDRAWN published on 30.11.2009
Selected format:Sterilization of health care products - Biological and chemical indicators - Test equipment
WITHDRAWN published on 15.11.2009
Selected format:Implants for surgery—Guidance on care and handling of orthopaedic implants
WITHDRAWN published on 15.11.2009
Selected format:Troilite and sulphur concentrates--Determination of iron content
WITHDRAWN published on 1.1.1981
Selected format:Pyrites and concentrate—Determination of total iron content—Part 1:Cerium sulfate volumetric method
WITHDRAWN published on 25.10.1996
Selected format:Latest update: 2026-04-02 (Number of items: 2 270 295)
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