Priority application of units of measurement of International System of Units;
Application of national reference standards of units;
Traceability of measurement results to the SI units reproduced by national standards of units of sizes and (or) international reference standards of units;
Openness and availability of the information in the field of ensuring the uniformity of measurements, except information rated according to the established procedure to the category of information with limited access;
Harmonization of national and international requirements for ensuring the uniformity of measurements.
