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ANSTO maintains the Australian standard for the activity of radionuclides by authorisation of the Chief Metrologist of the National Measurement Institute under the National Measurement Act 1960.

Our scientists employ unique, highly specialised radiation detection techniques to carry out precise measurements of radioactivity without reference to a calibration.

As the standards body, ANSTO provides certificates demonstrating traceability to the Australian standard for the activity of radionuclides to our customers.


Primary standards

ANSTO can perform accurate primary standardisations of a range of alpha-, beta- and/or gamma-emitting radionuclides.  

These primary standards can be verified by comparison with other international radionuclide metrology laboratories.

Secondary standards

Primary standards are transferred to ANSTO's secondary standard ionisation chamber in the form of radionuclide specific calibration factors. These calibrations make up the Australian secondary standards of activity of radionuclides.

Additional capabilities

  • Specialised radiation detection techniques (TDCR, 4πβγ)
  • β and γ spectrometry
  • Precise measurements against the national standard


Australian Certified Reference Materials (ACRMs)

An ACRM is a reference material that has been certified under regulation 48 of the National Measurement Regulations 1999. An ACRM can be used to achieve traceability to the Australian  standard for radioactivity for a specific radionuclide and measurement geometry.

Australian Nuclear Medicine Traceability Program (ANMTP)

ANMTP has been developed in response to the Australian and New Zealand Society of Nuclear Medicine (ANZSNM) expressed need for radionuclide metrology within nuclear medicine practices. ANMTP can assist practices with regulatory compliance through technical and legal traceability to the Australian standard for important nuclear medicine based radionuclides. A key objective of the program is to improve the health outcomes of Australians receiving nuclear medicine treatments through the more precise administration of nuclear medicine.

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Australian Industry Becquerel Traceability Program (AIBTP)

AIBTP is offered to radiopharmaceutical producers and provides traceability to the national standard to assist in fulfilling regulatory requirements and facilitate trade of radiopharmaceutical products.

Additional services

Radiolysis calculations

Assessment of measurement uncertainty budgets and mathematical measurement models

International leadership


ANSTO is a member of the Consultative Committee for Ionising Radiation (CCRI): Section II Measurement of Radionuclides which sets the international standards for the activity of radionuclides within the Metre Convention.

ANSTO is also a member of the Technical Committee for Ionising Radiation (TCRI) of the Asia Pacific Metrology Programme (APMP) and the International Committee for Radionuclide Metrology (ICRM).

Australian Nuclear Medicine Traceability Program


Developed in consultation with the Australian and New Zealand Society of Nuclear Medicine (ANZSNM), the Australian Nuclear Medicine Traceability Program (ANMTP) supports practitioners in the accurate administration of nuclear medicine.  

ANMTP can provide nuclear medicine practices with technical and legal traceability to the Australian standard for important nuclear medicine based radionuclides to assist with regulatory compliance.

The Australian Radiation Protection and Nuclear Safety Agency (ARPANSA) recommends annual accuracy testing of dose calibrators with Certified Reference Materials as part of standard quality control procedures.

ANSTO offers the program on an annual basis and includes certified traceability for a rotating schedule of radionuclides.


  • Improved accuracy and precision in the administration of radiopharmaceuticals through direct comparison with the Australian standard for radioactivity

  • Assistance to meet regulatory compliance obligations (e.g. ARPANSA Safety Guide to Radiation Protection in Nuclear Medicine)

  • Improved patient outcomes through ongoing accurate and reliable administration of radiopharmaceuticals


  • An onsite visit and dose calibrator measurement assessment by an ANSTO radionuclide metrologist

  • Australian Certified Reference Materials (calibration sources)

  • A measurement report

  • A certificate of traceability to the Australian Standard for the supplied Australian Certified Reference Materials

Program registration

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If you have any questions for the our Radionuclide Metrology team, please contact us.