Open AccessUNIFORMITY OF RESULTS OF MULTIPLE MEASUREMENT SERIES DURING PREPARING A CONTROL SAMPLE FOR QUALIFICATION TESTS
Author(s) -
Нодари Абелашвили,
Ника Абелашвили
Publication year - 2021
Publication title -
world science/world science
Language(s) - English
Resource type - Journals
eISSN - 2414-6404
pISSN - 2413-1032
DOI - 10.31435/rsglobal_ws/30032021/7513
Subject(s) - homogeneity (statistics) , standard deviation , statistics , mathematics , sample (material) , square root , reliability engineering , engineering , chemistry , chromatography , geometry
The work examines the methodology for assessing the homogeneity of the control sample of interlaboratory qualification tests, which is the most important characteristic of determining its status. The criterion for assessing the homogeneity between the characterizing values of the samples is the root mean square deviation and standard deviation of the proficiency test of the control sample with the standard uncertainty of the assigned value, which is a requirement of the ISO 13528 standard. Ignoring this requirement may provoke a false assessment of the participated laboratories taking corrective action.