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Information × Registration Number 0224U002073, 0123U105383 , R & D reports Title Development, verification, evaluation of uncertainty measurements, and implementation of the operating procedure for the measurement of specific activity of gamma-emitting radionuclides 137Cs, 40K, 226Ra, 232Th in accordance with the requirements of MI 2143-91 and MVV 4/86 popup.stage_title Head Bilonozhko Maksym V., Registration Date 05-02-2024 Organization State Interprise "Dnipropetrovsk Regional State Research and Technical Center for Standardization, Metrology and Certification" popup.description2 The research object is the gamma-spectrometric method for measuring the radionuclides cesium-137, potassium-40, radon-226, thorium-232, in food products, environmental objects, bulk materials, and construction products. The objective of the work is to develop a working procedure adapted for the testing and research center for food and industrial products of SE "Dniprostnadartmetrology," based on the MR-93 and MVV 4/86 methodologies. This procedure should be applicable for testing within the framework of meeting accreditation requirements established in accordance with DSTU EN ISO/IEC 17025:2019, particularly concerning verification and assessment of measurement conformity. Research methods include modeling the measurement process with the determination of measurement uncertainty components and the compilation of uncertainty budgets; verification of the measurement method on a gamma spectrometer in an experimental setting with the collection of statistical information and the construction of Shewhart control charts; processing and analysis of results; documentation of the working procedure and accompanying documents. A working procedure, VNDС HPP RI MTR 06:2023, "Working Procedure for Measuring the Specific Activity of Gamma-Emitting Radionuclides 137Cs, 40K, 226Ra, 232Th in Accordance with MI 2143-91 and MBVV 4/86" for gamma-spectrometric measurements in environmental objects, food products, and bio-samples has been developed. The verification procedure of the methodology has been carried out in the testing center's equipment. An assessment of measurement uncertainty has been conducted. The working procedure VNDС HPP RI MTR 06:2023 has been applied within the accreditation procedure and inspection supervision by the National Accreditation Agency of Ukraine (NAAU) in accordance with the requirements of DSTU EN ISO/IEC 17025:2019 for the testing and research center for food and industrial products of SE "Dniprostnadartmetrology." Product Description popup.authors Bilonozhko Maksym V. Bohdanova Nataliia V. Kobeliev Michail Yu. Martynova Viktoriia V. popup.nrat_date 2024-02-05 Close