This document describes how the evaluation of uncertainties in tensile tests can be obtained from tests at room temperature (ISO 68921) or elevated temperature (ISO 68922). This document reports how it can be applied to tests performed at ambient and elevated temperatures under axial loading conditions with a digital acquisition of force and displacement. NOTE 1 As CWA 1526122) and UNCERT CoP 07[1] reports, the tests are assumed to run continuously without interruptions on test pieces that have uniform gauge lengths. NOTE 2 Annex C gives for information an indication of the typical scatter in tensile test results for a variety of materials that have been reported during laboratory inter-comparison exercises.