International Journal of Thermophysics

, Volume 25, Issue 5, pp 1475–1482 | Cite as

Intercomparison of Measurements of the Thermophysical Properties of Polymethyl Methacrylate

  • S. Rudtsch
  • U. Hammerschmidt


Results of an intercomparison of measurements of thermal conductivity, thermal diffusivity, specific heat capacity, and density of polymethyl methacrylate (PMMA) in the temperature range between −70°C and +80°C are presented. The purpose of this comparison is to investigate the variability of the results among guarded hot-plate (GHP) and guarded heat-flow meter (GHF) techniques on the one hand and among GHP/GHF and other measuring instruments on the other. The primary objectives are to characterize the material properties mentioned and to quantify the effects of thermal contact resistances and temperature measurements. With regard to future use of PMMA as a reference material, reference data for the thermal conductivity are derived.

polymethyl methacrylate (PMMA) specific heat capacity thermal conductivity thermal diffusivity. 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Guide to the Expression of Uncertainty in Measurement, ”International Organization for Standardization, Geneva, Switzerland, 2nd Ed. (1993)corrected and reprinted (1995).Google Scholar
  2. 2.
    S. Rudtsch, Thermochim.Acta 382: 17 (2002).Google Scholar
  3. 3.
    I. Williams and R. E. Shawyer, NPL Special Report QU S46 (1990).Google Scholar
  4. 4.
    U. Hammerschmidt, Int.J.Thermophys. 23: 1151 (2002).Google Scholar
  5. 5.
    U. Hammerschmidt and W. Sabuga, Int.J.Thermophys. 21: 217 (2000).Google Scholar

Copyright information

© Plenum Publishing Corporation 2004

Authors and Affiliations

  • S. Rudtsch
    • 1
  • U. Hammerschmidt
    • 2
  1. 1.Physikalisch-Technische Bundesanstalt (PTB)AbbestrasseGermany
  2. 2.Physikalisch-Technische Bundesanstalt (PTB)BundesalleeGermany

Personalised recommendations