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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
Specifications of summer toboggan run
Standard published on 2.6.2020
Selected format:Food additive -- Ammonium bicarbonate
Standard published on 29.4.2014
Selected format:Materials for bonded neodymium iron boron permanent magnets
Standard published on 5.11.2012
Selected format:Catalyst for light-duty petrol vehicle exhaust purification
Standard published on 14.10.2017
Selected format:Chemical analysis methods of mixed rare earth oxide of ion-absorption rare earth ore—Part 1:Determination of fifteen rare earth oxides composition
Standard published on 7.9.2023
Selected format:Chemical analysis methods for mixed rare earth oxide of ion-absorpted type rare earth ore—Part 2:Determination of aluminum oxide content
Standard published on 14.10.2017
Selected format:Chemical analysis methods for mixed rare earth oxide of ion-absorpted type rare earth ore—Part 2:Determination of aluminum oxide content
Standard published on 14.10.2017
Selected format:Chemical analysis methods for mixed rare earth oxide of ion-absorption rare earth ore—Part 3: Determination of silicon dioxide content
Standard published on 30.8.2019
Selected format:Chemical analysis methods of mixed rare earth oxide of ion-absorption rare earth ore—Part 4Determination of iron trioxide content—Inductively coupled plasma atomic emission spectrometry
Standard published on 28.11.2024
Selected format:
Chemical analysis methods of mixed rare earth oxide of ion-absorption rare earth ore—Part 5Determination of sulfate radical content
Execute Date: february 2027
Standard published on 30.7.2026
Selected format:Latest update: 2026-09-18 (Number of items: 2 301 509)
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