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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
Physical test method of rare earth polishing powder Determination of burnishing mass Gravimetric analysis method
WITHDRAWN published on 13.4.2006
Selected format:Rapidly-quenched neodymium iron boron permanent magnetic powder
WITHDRAWN published on 13.4.2006
Selected format:Mixed rare earth oxide of ion-absorpted type rare earth ore
WITHDRAWN published on 13.4.2006
Selected format:Petroleum and natural gas industries - Pipeline transportation systems - Pipeline valves
WITHDRAWN published on 29.3.2006
Selected format:Petroleum and natural gas industries - Drilling and production equipment - Drill-through equipment
WITHDRAWN published on 29.3.2006
Selected format:Earth-moving machinery - Safety signs and hazard pictorials - General principles
WITHDRAWN published on 29.3.2006
Selected format:Earth-moving machinery—Machine safety labels—General principles
WITHDRAWN published on 3.9.2014
Selected format:Methods of measuring the characteristics of recording and reproducing equipment for sound on magnetic tape
WITHDRAWN published on 27.2.1987
Selected format:Technical condition for Raman Fiber Amplifier
WITHDRAWN published on 5.4.2006
Selected format:Secondary coating materials used for optical fiber - Part 2Modified propylene resin
WITHDRAWN published on 28.7.2008
Selected format:Latest update: 2024-03-25 (Number of items: 2 885 931)
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