PROFESSIONAL LEVEL VERIFICATION: CALIBRATION OF MEASURED BULBS FOR MEDICAL LABORATORIES

Abstract

The round of proficiency testing scheme for calibration of volumetric flasks was conducted by an accredited provider of proficiency testing - Metrology Center of SE “Kharkovstandardmetrology”. Report on the results of the round of the proficiency testing scheme № SM 38422000-9 19/08-II / 19 for calibration of volumetric flasks was published on the official website of the provider (http://khsms.com/primaryactivity/metrology/about/type/ remont / id / 23).When analyzing the documents based on the calibration of the volumetric flask provided by the participants of the round of proficiency testing scheme, the use of one calibration method was indicated - gravimetric, at the same time the participants use different methods of calibration which, in turn, is reflected in the form of significantly different extended uncertainties.The analysis of the obtained results testifies to the need to create and use a standardized calibration technique, which will provide a unified and clear approach to the conduct and report of calibration results of measuring utensils in general, and volumetric flasks in particular. The basis of such a technique can be the method of calibration by gravimetric method, which is set out in the European document EURAMET Calibration Guide No. 19 Version 3.0 (09/2018).Taking into account the use of the results of the calibration of volumetric flasks, including by medical laboratories, we believe that the creation and use of a standardized calibration method for volumetric glassware, and in particular volumetric flasks, not only meets the modern metrological needs of calibration customers, but will also improve the metrological support of critical activities of medical laboratories.