GB/T 11844-2015
Determination of fluorine and chlorine in uranium dioxide powder and pellets.Pyrohydrolysis ion-selective electrode method (English Version)

Standard No.

GB/T 11844-2015

Language

Chinese, Available in English version

Release Date

2015

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB/T 11844-2015

Replace

GB/T 11844-1989 GB/T 13369-1992

Scope

This standard specifies the method summary, reagents, instruments and equipment, samples, analysis steps, result calculation and method precision for the determination of fluorine and chlorine in uranium dioxide powder and pellets. This standard applies to the determination of fluorine and chlorine in uranium dioxide powder and pellets. When the sample weighing range is 0.5 g to 5.0 g, the determination range of fluorine is 1 μg/g to 400 μg/g, and the determination range of chlorine is 2 μg/g ~200 μg/g. The impurity ions Al³⁺ in the absorption solution are not more than 16 μg, Ca²⁺ is not more than 10 μg, Fe³⁺ is not more than 10 μg, Mg²⁺ is not When it is greater than 22 μg, it has no effect on the determination of fluorine.

GB/T 11844-2015 history

• 2015 GB/T 11844-2015 Determination of fluorine and chlorine in uranium dioxide powder and pellets.Pyrohydrolysis ion-selective electrode method
• 1989 GB/T 11844-1989 Uranium dioxide powder and pellets--Determination of fluorine--Pyrohydrolysis ion-selective electrode method

GB/T 11844-2015 Determination of fluorine and chlorine in uranium dioxide powder and pellets.Pyrohydrolysis ion-selective electrode method has been changed from GB/T 13369-1992 Determination of chlorine in uranium dioxide powders and pellets by pyrohydrolysis ion-selective electrode method.