Email this article Metrological Traceability of Measurement Results of Metallurgical Materials Chemical Composition. Practical Questions
- Authors: Stepanovskikh V.V.1
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Affiliations:
- Institute for Certified Reference Materials
- Issue: Vol 14, No 2 (2024)
- Pages: 184-186
- Section: Метрология химического анализа
- URL: https://journals.eco-vector.com/2227-572X/article/view/632513
- DOI: https://doi.org/10.22184/2227-572X.2024.14.2.184.186
- ID: 632513
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Abstract
The results obtained in metallurgy, mechanical engineering, geology, etc. when analyzing matrix materials are expressed in relative units _ the mass fraction of the corresponding element or compound (kg/kg, percentage, etc.) In accordance with the measurement algorithm, the results are traced to the SI unit of mass kilogram.
The metrological characteristics of laboratory balances are important when assessing the
uncertainty of the analytical result. It is shown that their calibration is preferable to verification.
Calibration of universalP purpose analytical instruments is carried out individually with each batch of samples. Accuracy control procedures using CRMs, performed on a regular basis in measurement procedures, confirm the metrological traceability of results. The need for annual verification of analytical instruments in this case seems inappropriate and redundant.
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About the authors
Valerii V. Stepanovskikh
Institute for Certified Reference Materials
Author for correspondence.
Email: v.stepanovskikh@icrm-ekb.ru
ORCID iD: 0009-0004-5729-8837
Ph.D., Director
Russian Federation, EkaterinburgReferences
- Order of Federal Agency on Technical Regulating and Metrology No. 1622 dated 07/04/2022. On Approval of the State Verification Scheme for Mass Measuring Instruments, GET 3–2020 (The D. I. Mendeleev All-Russian Institute for Metrology (VNIIM)) https://www.rst.gov.ru/portal/gost/home/activity/documents/orders#/order/338657.
- Order of Federal Agency on Technical Regulating and Metrology No. 2356 dated September 26, 2022. On Approval of the State Verification Scheme for Instruments Measuring the Mass and Volume of Liquid in a Flow, Liquid Volume and Capacity for Static Measurements, Mass and Volumetric Flow Rates of Liquid https://www.rst.gov.ru/portal/gost/home/activity/documents/orders#/order/370271
- Stepanovskikh V. V., Khuzagaleeva R. K., Kolpakova E. K. Metrological Traceability of Matrix Reference Materials. Industrial laboratory. Diagnostics of materials. 2023;89(2(II)):21–27. (In Russ.) https://doi.org/10.26896/1028-6861-2023-89-2-II-21-27
- Krylov A. I., Lazarenko E. R. On Verification, Calibration of Instruments, Certification of Methods and Reliability of the Results of Chemical Analytical Measurements. Analytics. 2023; 13(6): 428–434. doi.org/10.22184/2227–572X.2023.13.6.428.434
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