Methodology for Selecting a Method for Determining Intervals Between Certifications оf Standards

Reproduction and storage of measurement units are carried out using standards – measuring instruments with the highest accuracy, a key link in the metrological chain of transferring units. The procedure for certification of measurement standards is a key event that confirms the ability of standards to ensure the accuracy and uniformity of measurements. The key factor in the standard certification procedure is the correct definition of the intervals between certifications. The main direction of development of the legislative base of metrology in the Russian Federation is strengthening the order and discipline in the field of ensuring the uniformity of measurements. Failure to comply with the certification procedure by legal entities entails significant fines. The improvement of methods for determining intervals between certifications of standards is becoming more relevant in modern metrology. The purpose of the work is a solution of methodological problems of determining intervals between certifications of measurement standards. The publication reveals the contradictions that arise when determining the intervals between certifications of standards, as well as the disadvantages of the current certification procedure and their methodological reasons. As a solution to the identified problems, directions for improving the existing scientific and methodological apparatus for determining intervals between certifications are identified. In particular, a decision tree is proposed as a tool that allows choosing one of the methods for determining intervals between certifications based on an analysis of the composition of the initial data.