Development and validation of measurement techniques according to ISO/IEC 17025:2017

The implementation of ISO/IEC 17025:2017 is an important step in setting requirements for measuring, taking into account the requirements of many international documents that contain requirements for equipment and techniques of test and measurement. An important factor in implementing the requirements of this standard in practice is to establish the suitability for application of test methods developed by the laboratory. The purpose of validation of the method is to check the possibility of obtaining a reliable result of measurements with the required accuracy during the testing of products. In order to obtain reliable measurement results in these techniques, it is important to correctly establish the requirements for measuring equipment, test conditions, the sequence of measuring operations and requirements for specialists. The fulfillment of these requirements makes it possible to obtain a reliable result with the necessary accuracy. Therefore, during the validation of the methods it is important to carry out the metrological confirmation of the used measuring equipment of the measured task. Also during the development of techniques it is important to choose such an indicator of accuracy of measurements, which would help to obtain a reliable result. This edition of the standard proposes to standardize and evaluate the accuracy of the measurement result not only in uncertainty of measurements, but also in other indicators of accuracy. This article presents the results of the analysis of the requirements for the content of the methods and validation of such factors as the requirements for the test and measuring equipment and the expediency of using different measurement accuracy indicators. The implementation of ISO/IEC 17025:2017 is an important step in setting requirements for measuring, taking into account the requirements of many international documents that contain requirements for equipment and techniques of test and measurement.