Entry in the Register of Certified Reference Materials of Specific Activity of Radionuclides

07/08/2026

We hereby inform you that the following reference materials of RITVERС' products was added to the Register, namely the reference materials of specific activity of radionuclide solutions:

• CRM 13340-2026 (Americium-241), CRM 13339-2026 (Europium-152), CRM 13338-2026 (Caesium-137), CRM 13337-2026 (Barium-133), CRM 13336-2026 (Cobalt-60), CRM 13335-2026 (Cobalt-57) from the UAR-G-RT reference materials set;
• CRM 13334-2026 (Strontium-90 + Yttrium-90), CRM 13333-2026 (Tritium) from the UAR-B-RT reference materials set;
• CRM 13332-2026 (Plutonium-239), CRM 13331-2026 (Uranium-238), CRM 13330-2026 (Plutonium-238) from the UAR-A-RT reference materials set.

The official publication of these documents completes the development, production, and testing of a new series of products, the UAR-RT reference materials set. The reference materials sets serve as first-category working standards. Historically, this role was fulfilled by standard and reference solutions of radionuclides.

The reference materials UAR-RT will assist Russian enterprises in the metrological certification of equipment and measurement methods, in accordance with the latest version of the verification scheme, «GOST 8.033-2023 – State system for the uniformity of measurements. State verification schedule for measuring instruments of radionuclide activity, specific activity of radionuclides, flux and flux density of alpha, beta particles, and photons from radionuclide sources».