Standard Reference Materials: Glass Fiberboard, SRM 1450c, for Thermal Resistance From 280 K to 340 K.
Standard Reference Materials: Glass Fiberboard, SRM
1450c, for Thermal Resistance From 280 K to 340 K.
Zarr, R. R.
NIST SP 260-130; 64 p. April 1997.
Available from: Government Printing Office
Order number: SN003-003-03460-6
building technology; calibration; density; fibrous glass
board; guarded hot plate; heat flow meter;
interlaboratory; round robin; standard reference
material (SRM) 1450; thermal conductivity; thermal
insulation; uncertainty; experimental design; standard
Thermal conductivity measurements at room temperature
are presented as the basis for certified values of
thermal resistance for SRM 1450c, Fibrous Glass Board.
The measurements have been conducted in accordance with
a randomized full factorial experimental design with two
variables, bulk density and temperature, using NIST's
one-meter line-heat-source guarded-hot-plate apparatus.
Uncertainties of the measurements, consistent in format
with current international guidelines, have been
prepared. The thermal conductivity was measured over
ranges of bulk density from 150 kg/m3 to 165 kg/m3 and
mean temperature from 280 K to 340 K. Statistical
analyses of the physical properties from the SRM are
presented and include variations between boards, as well
as within board. Material characterization, including
the material's microstructure, is presented. Results
are compared to data from previous material lots of the
SRM 1450 Series as well as to data from an international
round robin of guarded-hot-plate apparatus.