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Ampoules for Radioactivity Standard Reference Materials



Ronald Colle


Standard-sized ampoules for radioactive solution standards have been employed by the National Institute of Standards and Technology (NIST) for nearly the past 70 years. This note briefly summarizes the origins and history of the five different batches of the ampoules that have been used, including details on the procurement and testing of the recent batch of replacement ampoules in 2018.
NIST Interagency/Internal Report (NISTIR) - 8254
Report Number


Gamma-ray spectrometry, Glass ampoules, Ionization chamber, SRM™, Standards, Radioactivity


Colle, R. (2019), Ampoules for Radioactivity Standard Reference Materials, NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD, [online], (Accessed June 17, 2024)


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Created August 6, 2019