Author: D. Archer 1
View More View Less
  • 1 National Institute of Standards and Technology Physical and Chemical Properties Division Gaithersburg USA MD 20899-8380 100 Bureau Drive, MS 8380
Restricted access


Several reference materials and associated reference values have been recommended for the purposes of calibration and/or validation of differential scanning calorimetry (DSC). However, issues of available sample purity, reference-property value accuracy, and potential undesired reactions between reference materials and the materials used for sample pans have not been considered sufficiently in some of the recommendations of property values for the materials. These limitations attenuate greatly the usefulness of many of these reference material recommendations. Indeed, the state of uncertainty regarding true reference property values can be shown to be a limiting factor in the uncertainty of measurements made with DSC. NIST has certified the temperatures and enthalpies of fusion of two new Standard Reference Materials, SRMs 2234 and 2235, in order to help alleviate some of the difficulty.

Monthly Content Usage

Abstract Views Full Text Views PDF Downloads
Jan 2021 10 0 0
Feb 2021 4 0 0
Mar 2021 7 1 2
Apr 2021 2 0 0
May 2021 4 0 1
Jun 2021 1 0 0
Jul 2021 0 0 0