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Techniques and Standards for Destructive Analysis

Working Group

Philip Kegler
Nuclear Safeguards and Security
Forschungszentrum Jülich GmbH
Institute of Energy and Climate Research – Nuclear Waste Management and Reactor Safety (IEK-6)
52425, Jülich, Germany

Magdalena Toma
Joint Research Centre - Karlsruhe
European Commission, GII.6
Hermann-von-Helmholtz-Platz 1,
76344 Eggenstein-Leopoldshafen,

Terms of Reference


To provide the Safeguards Community with expert advice on destructive analysis methods and procedures and their capabilities for Nuclear Material Accounting and Safeguards, act as a forum for the exchange of information on DA methods.



To achieve this the Working Group will:

  1. Maintain a list of DA methods suitable for accountancy and verification purposes.
  2. Determine the reliability of DA methods by continuing inter-laboratory measurement evaluation programmes; in particular the Group will:
    • identify analytical problems of common interest;
    • define the objectives and the design of the programmes;
    • evaluate the results;
    • consider formal QA requirements.
  3. Promulgate Performance Values for Uncertainties in DA methods of nuclear material.
  4. Recommend Target Values for Uncertainties in measurements in nuclear material, and promote international Target Values.
  5. Recommend the implementation of new and improved methods.
  6. Promote the systematic and correct use of Reference Materials by:
    • maintaining a list of Reference Materials available within the European Union and elsewhere;
    • maintaining information on their traceability;
    • advising on their distribution and transport problems.
  7. Consider sampling problems and their significance for DA results (including sample treatment, conditioning, storage, transport, stability).
  8. Promote the use of correct and internationally accepted terminology in measurements.
  9. Support new developments of DA methods for Safeguard purposes.
  10. Promote cooperation with other Working Groups.

DA Documents and Publications

12 JUNE 2023
International Target Values for Measurement Uncertainties in Safeguarding Nuclear Materials - 2022
16 JUNE 2022
Statistical error model-based and GUM-based analysis of measurement uncertainties in nuclear safeguards – a reconciliation
23 MARCH 2021
International Target Values 2010for Measurement Uncertaintiesin Safeguarding Nuclear Materials
23 MARCH 2021
Report on the Workshop on Reference Material needs and Evaluation of Measurement Uncertainties in Destructive (DA) and Non-Destructive Analysis (NDA)
23 MARCH 2021
Report on the Workshop on Uncertainties in Nuclear Measurements


DA Useful Links

DA CIRCA BC Document Repository (credentials required)