1. 10. The choice of norms accuracy.

Regulation of standards of measurement accuracy was considered in the first two chapters. In this section we consider only those issues of metrological provision of quality analyzer, the determination of which requires concerted action chemical engineers and instrument makers, and, in addition, present the main problem of departmental metrological service and metrological services companies.

If you set rules of measurement accuracy, measurement error is estimated and compared with the permissible. With the lack of accuracy of the IPT offer another way to improve it. If you specify the requirements for reliability of the control, you will appreciate-zayut measurement error, and specifying the distribution of the controlled parameter, calculates reliability of the control.

In the presence of measurement accuracy standards the main content of the metrological control of the working methods of the test is to verify the adequacy of the requirements for measuring the components that affect their accuracy, and analysis of relevant indicators of measurement accuracy guaranteed in compliance with the rules of measurement established norms of measurement accuracy. Accordingly, when viewed metrological control should only those sections of testing procedures that govern the requirements for performing measurements; the most important of which are requirements for the conditions, means and procedures of measurement.

In establishing the standards of measurement accuracy taken into account the purposes for which these measurements are carried out, for example in order to study, control or management, as well as take into account economic considerations, since the pursuit of precision due to the appreciation of the measuring equipment and its operation.

Lack le-vannih regulates standards of measurement accuracy tsaramitrov technology leads to the use of measuring requisitions high accuracy class, which causes great aatraty for their acquisition and increases the value of their metrological service in operation.

It is necessary to distinguish the accuracy of measurement standards - requirements for measurement accuracy, which are covered in the technical documentation (standards, specifications. MVI and really guarantee the accuracy of the MVI is detected in the course of its development and metrological research.

In those cases where the rules of measurement accuracy is not set, but the set requirements for the accuracy test controller should the same manner as in the previous case, to verify the adequacy of requirements to components measurement (conditions, means and procedure of the measurement), and the analysis accuracy selection means and measurement techniques to perform on the basis of compliance PTI guaranteed in compliance with the rules of measurement specified standards of accuracy tests.

Questions choice of controlled parameters and measurement accuracy standards are closely linked to each other. They must be solved through joint efforts of developers of products, engineers, metrologists.

Install the ability to control parameters Establishing normal accuracy.