The order of testing and approvement of the types of patterns of measuring instruments is approved by the decision of Gosstandart of the Russian Federation. It establishes the general requirements to the organization work on tests and the approvement of measuring instruments' types. This order of testing and approvement is applied to the measurment patterns, including the measuring systems, complexes, which are used in the sphere of distribution of the state metrological control and supervision.
After the approvement of the measuring instrument Gosstandart of Russia (Federal agency on technical regulation and metrology of the Russian Federation) registers the Certificate and includes in the State register.
Thanks to the pattern approval certificate of measuring instruments can be organized information service concerned businesses and individuals, including the national metrological services of the countries participating in co-operation for mutual recognition of test results and type approval of measuring instruments.