Abstract
This chapter describes calibration and standardization in disc. Particular emphasis is placed on calibration schemes that lead to true thermodynamic properties, rather than arbitrary quantities that may not even be reproducible between two different types of instrument. Quantitative data can only be obtained after calibration, under conditions that approach those of the unknown as closely as possible, using materials with well-defined properties. The calibration of differential scanning calorimeters is not a difficult procedure. A range of materials is available for temperatures from about 250 to 700 K, but the lower and (especially) upper temperature ranges are less well served. The differential scanning calorimeters (DSC) signal is a differential temperature or power as a function of time or temperature (abscissa). The aim of any calibration procedure is to define the temperature scale for a given set of experimental conditions and to fix the ordinate so that it refers to known heat flow rates, either directly or in combination with the abscissa, as an area that corresponds to a known quantity of heat.
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