DOI: https://doi.org/10.32515/2664-262X.2025.12(43).2.274-283
Interlaboratory Testing as an Effective Tool for Improving the Quality of Diagnostics of the Technical Condition of Wheeled Vehicles in the ISO 9001 System
About the Authors
Andrii Serhiichuk, PhD Student, Central Ukrainian National Technical University, Kropyvnytskyi, Ukraine, ORCID: https://orcid.org/0009-0000-3588-0560, e-mail: kirovogradsto@gmail.com
Viktor Aulin, Professor, Doctor of Technical Sciences, Professor of the Department of Operation and Repair of Machines, Central Ukrainian National Technical University, Kropyvnytskyi, Ukraine, ORCID: https://orcid.org/0000-0003-2737-120X, e-mail: aulinvv@gmail.com
Andrii Hrynkiv, Senior Researcher, PhD in Technics (Candidate of Technics Sciences), Senior Lecturer of the Department of Machinery Operation and Repair, Central Ukrainian National Technical University, Kropyvnytskyi, Ukraine, ORCID: https://orcid.org/0000-0002-4478-1940, е-mail: AVGrinkiv@gmail.com
Yevhen Kozachenko, PhD Student, Central Ukrainian National Technical University, Kropyvnytskyi, Ukraine, ORCID: https://orcid.org/0009-0004-4075-439X, e-mail: Kozachenko.yevhen@gmail.com
Abstract
The article presents the results of the study of interlaboratory tests as an effective tool for confirming the quality of diagnostics of the technical condition of wheeled vehicles. Diagnostics were carried out within the framework of modern quality management systems built in accordance with the requirements of ISO 9001:2015, ISO/IEC 17025:2019 and ISO/IEC 17043:2023 standards. At the same time, the reliability, stability and reproducibility of test results performed at technical control stations are increased by implementing a standardized procedure for interlaboratory measurements.
The studies were conducted on the basis of thirteen test sites of the enterprises LLC "Avtodiagnostics" and LLC "Avtomotodiagnostics" of the Kirovograd region. A wheeled vehicle of category N3 – DAF XF 105 was used as a reference object. The paper describes in detail all stages of organizing interlaboratory tests in accordance with the PDCA cycle: program planning, unification of methods, calibration of measuring equipment, personnel training, measurement performance, processing of results and implementation of corrective actions. Statistical methods according to ISO 13528 and ISO 5725 standards were used to analyze the consistency of the results. The database emissions were checked using the Grubbs criterion, and robust average values with corresponding standard deviations were also determined. The results obtained demonstrated high repeatability and reproducibility of measurements: the discrepancies between the interlaboratory test sites did not exceed 3.5%, which indicates the stability of metrological traceability and the appropriate level of competence of the testing laboratories. The detected deviations in terms of smoke and noise were eliminated through equipment calibration and re-training of personnel, which confirmed the effectiveness of corrective measures. It is proven that the use of interlaboratory tests increases confidence in the results of diagnostics of the technical condition of wheeled vehicles and forms the basis for the implementation of a regional database of control measurements, which can be used for long-term monitoring of the quality of technical control. The proposed approach demonstrates the practical value of integrating interlaboratory tests into the quality management system at maintenance stations and can be used as a model for building a national system for assessing the competence of testing sites and improving road safety in Ukraine.
Keywords
ISO 9001 Standard, ISO/IEC 17025 Standard, interlaboratory testing, DAF, PDCA, technical control, metrological traceability, measurement quality
Interlaboratory Testing as an Effective Tool for Improving the Quality of Diagnostics of the Technical Condition of Wheeled Vehicles in the ISO 9001 System
About the Authors
Andrii Serhiichuk, PhD Student, Central Ukrainian National Technical University, Kropyvnytskyi, Ukraine, ORCID: https://orcid.org/0009-0000-3588-0560, e-mail: kirovogradsto@gmail.com
Viktor Aulin, Professor, Doctor of Technical Sciences, Professor of the Department of Operation and Repair of Machines, Central Ukrainian National Technical University, Kropyvnytskyi, Ukraine, ORCID: https://orcid.org/0000-0003-2737-120X, e-mail: aulinvv@gmail.com
Andrii Hrynkiv, Senior Researcher, PhD in Technics (Candidate of Technics Sciences), Senior Lecturer of the Department of Machinery Operation and Repair, Central Ukrainian National Technical University, Kropyvnytskyi, Ukraine, ORCID: https://orcid.org/0000-0002-4478-1940, е-mail: AVGrinkiv@gmail.com
Yevhen Kozachenko, PhD Student, Central Ukrainian National Technical University, Kropyvnytskyi, Ukraine, ORCID: https://orcid.org/0009-0004-4075-439X, e-mail: Kozachenko.yevhen@gmail.com
Abstract
Keywords
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