Smart Energy and Sustainable Environment , ISSN 2668-957X
2020, Volume 23, Issue 1
Pages 29-34

Long term uncertainty method used to evaluate ICSI tritium laboratory’s proficiency test results

Carmen Varlam * , Irina Vagner , Ionut Faurescu , Denisa Faurescu

National Research and Development Institute for Cryogenics and Isotopic Technologies - ICSI Rm. Valcea, Uzinei Street no. 4, PO Box Râureni 7, 240050, Râmnicu Vâlcea, Romania

*Corresponding author: Carmen Varlam, E-mail:

Received 03 February 2020, Received in revised form 20 February 2020, Accepted 24 February 2020, Available online 06 March 2020


Results obtained for proficiency tests during 2000-2017 period are used to verify and validate measurements method of tritium specific activity in aqueous samples. The long-term uncertainty method (LTUM) was applied to Tritium Laboratory results in order to identify the constant and proportional bias effects, stability of the laboratory routine procedure, and total error of the measurements.


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  • Keywords

    Regression line, proficiency test, tritium

    Tag search Regression line proficiency test tritium