Room-Temperature Thermal Conductivity of Expanded Polystyrene Board for a Standard Reference Material.
Room-Temperature Thermal Conductivity of Expanded
Polystyrene Board for a Standard Reference Material.
Zarr, R. R.; Davis, M. W.; Anderson, E. H.
NISTIR 5838; 42 p. May 1996.
Available from: National Technical Information Service
Order number: PB96-193639
expanded polystyrene; thermal conductivity; calibration;
fenestration; foam; guarded hot plate; standard
reference materials; experimental design
Thermal conductivity measurements at room temperature
are presented as the basis for certified values of SRM
1453, expanded polystyrene board. The measurements have
been conducted in accordance with a randomized full
factorial experimental design with two variables, bulk
density and temperature, using NISTs one-meter
line-heat-source guarded hot plate apparatus.
Uncertanities of the measurements, consistent with
current ISO guidelines, have been prepared. The thermal
conductivity measurements were conducted over a range of
bulk density of 37.4 to 45.8 kg/m3 and mean temperature
of 281 to 313 K. Statistical analyses of the physical
properties of the SRM are presented and include
variations between boards, as well as within boards.
Measurements of the foam's compressive properties and
microstructure are presented.