Evaluation of the parameters for weighing uncertainty estimation in radionuclide source preparation

In radionuclide metrology Pycnometer, Substitution, Elimination and Modified Elimination methods could be used for source preparation. In order to validate Modified Elimination method against the former ones supporting measurements should be performed. As a result, in considering these measurements for uncertainty evaluation the four methods based on carefully weighingound compatible and complies with the requirement. In radionuclide metrology Pycnometer, Substitution, Elimination and Modified Elimination methods could be used for source preparation. In order to validate Modified Elimination against the former ones supporting measurements should be performed. As a result, in considering these measurements for uncertainty evaluation the four methods based on carefully weighing were found compatible and complies with the required threshold uncertainty. (author)