Traceability

THE STANDARD OF UNIT OF ULTRASONIC PRESSURE IN AQUEOUS MEDIUM

The article analyzes the topicality of the primary standard creation of the ultrasonic pressure unit in water for the frequency  range of 0.5–10.0 MHz  in Ukraine.  Its creation  is predetermined by  the necessity of  the exploited ultrasound medical equipment metrological maintenance as well as for the assessment of compliance with the requirements of the technical regulations for medical products to be exploited.

NEW APPROACH TO DETERMINING THE NEED OF MEASURING EQUIPMENT CALIBRATION

Ensuring the unity and metrological traceability of measurement results becomes the key component necessary to reach market confidence in the results of calibrations, tests or measurements. Important aspect of maintaining the ability of the laboratory to receive metrological traceability and reliable measurement results is to determine the maximum permissible period between two calibrations of the standards and measuring instruments that provides the acceptable accuracy of measurements during their operation.