ASTM E2069-19

5.1 This test method is useful in calibrating the temperature signal of a DSC for cooling experiments such as the determination of crystallization temperatures in Test Method D3418 and Test Method E794.

5.2 This test method may be used for research, development, analytical, specification acceptance, quality assurance, and control purposes.

1.1 This test method describes the temperature calibration of differential scanning calorimeters (DSCs) on cooling using the difference between transition temperatures upon heating and cooling in the temperature range of 65 °C to 420 °C. An offset in the indicated temperature between heating and cooling experiments, within this temperature range, may be used to provide temperature calibration on cooling at other temperature ranges.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3 Test Method E3142 is an alternative to this test method.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.