Причина отменыThis test method covered a method for the determination of the uranium concentration in uranium oxides by isotope dilution mass spectrometry (IDMS). The isotopic composition of the oxide was measured simultaneously.

Formerly under the jurisdiction of Committee C26 on Nuclear Fuel Cycle, this test method was withdrawn in June 2018. This standard is being withdrawn without replacement because the information in this test method is duplicated in more detail in other ASTM standards; specifically, the dissolution of uranium oxide is covered in Practice C1347 and TIMS IDMS measurements in Test Methods C1625 and C1672.

Значение и использование

Determination of percent uranium content and ²³⁵U abundance in oxides and other materials containing high concentrations of uranium is required for special nuclear materials accountability, regulatory requirements, and process control.

Область применения

1.1 This test method covers a method for the determination of the uranium concentration in uranium oxides by isotope dilution mass spectrometry (IDMS). The isotopic composition of the oxide is measured simultaneously.

1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.