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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
Acoustics--Standard ultrasonic power source
Standard published on 17.3.1993
Selected format:Acoustics - Measurement methods of insertion lossecho reduction and sound absorption coefficient for underwater acoustical material samples
Standard published on 30.12.2011
Selected format:Anchoragegrip and coupler for prestressing tendons
Standard published on 11.9.2015
Selected format:Dangerous goods—Requirements of the hazard classification procedure and compatibility for explosives
Standard published on 23.8.2024
Selected format:Dangerous goods—Test method of acceptance and classification for explosives
Standard published on 26.10.2024
Selected format:Discharge standard of water pollutants for space propellant
Standard published on 22.5.1993
Selected format:Water quality--Determination of asymmetrical dimethyl hydrazine--Amino ferrocyanide sodium spectrophotometric method
Standard published on 22.5.1993
Selected format:Water quality--Determination of triethylamine--Bromophenol blue spectrophotometric method
Standard published on 22.5.1993
Selected format:Water quality--Determination of diethylenetriamine--Salicyiclaldehyde spectrophotometric method
Standard published on 22.5.1993
Selected format:Generic specification for Loran-C system
Standard published on 20.4.1993
Selected format:Latest update: 2026-06-15 (Number of items: 2 282 497)
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