📋 Tender Overview
Based on the results of international key comparisons within the framework of the Euro-Asian cooperation of state metrological institutions COOMET Russia has confirmed the calibration and measurement capabilities in the field of measuring deviations from the flatness of optical surfaces and their compliance with the declared metrological characteristics. The new line was added to the KCDB key comparison database of the International Bureau of Weights and Measures BIPM.Participation in international comparisons is both a great responsibility and a good way to confirm the status of a countrys calibration capabilities along with other leading national metrology institutes. The results confirmed not only our competitiveness in the field of geometric measurements but also gave another impetus to further research work in this area said Alexander Kuzin director of the All-Russian Research Institute of Metrological Service of Rosstandart.The work on comparisons was carried out by specialists of the All-Russian Research Institute of the Metrological Service of Rosstandart on the basis of the state primary special standard GET 183-2019 of the institutes own development. The accuracy of the standard is not inferior to the best world analogues of Germany Japan Switzerland etc. The Russian primary standard allows calibration of measures of deviation from flatness with an expanded uncertainty of 8.2 nm in the measurement range from 0.002 to 2.0 microns on surfaces of 50 to 120 mm ...In 2021 it is planned to participate in similar international key comparisons under the auspices of EURAMET. In addition to Russia the number of participants included metrological organizations from China Japan South Africa and Germany.
