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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
Determination of moisture in uranium dioxide pellets
Standard published on 21.10.1989
Selected format:
Determination of moisture in uranium dioxide powder and pellets
Execute Date: february 2026
Standard published on 1.8.2025
Selected format:Uraniumdioxide powder and pellets--Determination of uranium--Ferrous sulfate reduction-potassium dichromate oxidation titrimatric method
Standard published on 25.10.1989
Selected format:Determination of oxygen to uranium atomic ratio in uranium dioxide powder and pellets—Thermogravimetric method
Standard published on 25.4.2025
Selected format:Determination of nitrogen in uranium dioxide powder and pellets—Spectrophotometry
Standard published on 5.10.2025
Selected format:Determination of fluorine and chlorine in uranium dioxide powder and pellets—Pyrohydrolysis ion-selective electrode method
Standard published on 3.7.2015
Selected format:Determination of silicon in uranium dioxide powder and pellets by spectrophotometry
Standard published on 3.7.2015
Selected format:Determination of specific surface area of uranium dioxide powder by BET capacity method
Standard published on 19.6.2008
Selected format:Methods for analysis of uranium ore concentrate - Part 1: Determination of uranium by ferrous sulfate reducion potassion dichromate titrimetry
Standard published on 19.9.2008
Selected format:Determination of sulfur in uranium ore concentrate by combustion-iodometric titrimetry
Standard published on 19.5.1999
Selected format:Latest update: 2025-12-29 (Number of items: 2 253 390)
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