= International Temperature Scale of 1990
{wiki=International_Temperature_Scale_of_1990}
The International Temperature Scale of 1990 (ITS-90) is a defined temperature scale used for calibrating thermometers and establishing temperature measurements in scientific and industrial applications. It was established by the Comité International des Poids et Mesures (CIPM) as the successor to earlier temperature scales, notably the IPTS-68 (International Practical Temperature Scale of 1968).
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