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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--Data interchange on 130mm flexible disk cartridges using modified frequency modulation recording at 13262 ftprad on 80 tracks on each side--Part 3:Track formatB for 80 tracks
Standard published on 6.4.1995
Selected format:Information processing--File structure and labelling of flexible disk cartridges for information interchange
Standard published on 16.7.1994
Selected format:Gas turbines—Vocabulary
Standard published on 28.12.2018
Selected format:Case outlines for film integrated circuits and hybrid integrated circuits
Standard published on 25.6.1994
Selected format:General technical standard for electrical equipment structure
Standard published on 28.12.1994
Selected format:Specification for air cargo unit load devices
Standard published on 10.4.2008
Selected format:Test method for friction element of wet clutch
Standard published on 9.3.2009
Selected format:Secondary cells and batteries containing alkaline or other non-acid electrolytes - Vented nickel-cadmium prismatic rechargeable single cells
Standard published on 30.12.2011
Selected format:AC and/or DC-supplied electronic control gear for tubular fluorescent lamps—Performance requirements
Standard published on 29.9.2020
Selected format:General specification for transmission line protection equipment
Standard published on 31.7.2017
Selected format:Latest update: 2026-04-24 (Number of items: 2 274 650)
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