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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
Pins and grooved pins--Shear test
Standard published on 22.9.1992
Selected format:Water for industrial circulating cooling system and boiler - Determination of copper
Standard published on 13.8.2007
Selected format:Code for the dust protecting technique of the ceramic production
Standard published on 23.12.2008
Selected format:Road portland cement
Standard published on 1.11.2017
Selected format:General Specifications for and Planar standard sources
Standard published on 19.6.2008
Selected format:Authorized limits for normalized releases of radioactive effluents from nuclear fuel cycle
Standard published on 29.9.1992
Selected format:Specification for uranium hexaflouride enriched to less than 5%235U
Standard published on 9.10.2015
Selected format:Determination of carbon in uranium oxide powder and pellets—High-frequency inductive furnace combustion-infrared detection method
Standard published on 11.10.2021
Selected format:Determination of total hydrogen in uranium dioxide pellets
Standard published on 3.7.2015
Selected format:Spectrophotometric determination of vanadium in uranium hexafluoride
Standard published on 29.9.1992
Selected format:Latest update: 2026-06-10 (Number of items: 2 281 917)
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