To cite this database, we suggest use of a citation format appropriate to that of an edited book:
Robert R. Zarr, Josue A. Chavez, Angela Y. Lee, Geraldine Dalton, and Shari L. Young, NIST Heat Transmission Properties of Insulating and Building Materials, NIST Standard Reference Database Number 81, National Institute of Standards and Technology, Gaithersburg MD, 20899, http://srdata.nist.gov/Insulation/, (retrieved [date of access]).
Go BackGeneric name of material of test specimen. Some materials may have additional information that can be seen in the detail page. If it is available, a button saying: "Click for material info" appears.
Name of manufacturer or third-party source of test specimen.
If available, specifies the Trademark® or Trade Name of test specimen. Some trade names may have additional information that can be seen in the detail page. If it is available, a button saying: "Click for designation info" appears.
The bulk density (including voids) of the test specimen in kg·m-3 or lb·ft-3.
Thickness of cross-section of test specimen in mm or inches.
Average of hot and cold plate temperatures corresponding to the temperature at the mid-plane of the test specimen in °C or °F.
Heat transmission property based upon steady-state, one-dimensional heat-transfer tests, including thermal conductance, thermal resistance, (apparent) thermal conductivity, and (apparent) thermal resistivity, among others. The thermal transmission properties of heat insulators and other building materials determined from standard test methods typically include several mechanisms of heat transfer including conduction, radiation, and possibly convection.
The database internal identification number.
Describes the physical characteristics of the material. Can be one of the following: blanket, block, board, loose, pipe, slab, spray, woven
Assigns a unique identification number to the test specimen.
Difference of hot and cold plate temperatures in °C or °F.
The time rate of steady-state heat flow through a homogeneous material induced by a unit temperature gradient normal to the unit area (in W·m-1·K-1) or (Btu·in·h-1·ft-2·°F-1).
The amount of water (by mass) present in the test specimen at the start of the test in %.
If available, specifies the Trademark® or Trade Name of test specimen. Some trade names may have additional information that can be seen in the detail page. If it is available, a button saying: "Click for designation info" appears.
Provides additional recorded information describing the test specimen.
Provides additional recorded information describing the test specimen.
Specifies the ambient conditions (temperature, humidity, time), if available, that the specimen was conditioned to prior to testing.
Date of test (month, day year [xx/xx/xxxx]).
Provides the name of the test apparatus used to provide the test data.
Specifies either the traditional two-sided mode of operation for a pair of identical specimens, or one-sided for a single specimen [2 or 1] . This field provides information on variation of the test method.
Specifies the name of the material of the other specimen if the test mode of operation is 1.
Provides the material name if sheets have been inserted between the test specimen and plates.
Indicates if thermocouples have been installed directly on the faces of the specimens.
The relative expanded uncertainty for the estimate for the thermal transmission property of interest in %. Unless explicitly stated, the relative expanded uncertainty for most estimates of the thermal transmission properties ranges from 2 % to 3 % for heat insulators and 10 % for other materials.
The amount of water (by mass) present in the test specimen at the end of the test in %.
SI refers to the International System of Units, universally abbreviated SI (from the French Le Système International d’Unités). The term IP (also I-P) is an abbreviation for inch-pound and refers to the system of customary units commonly used in the United States.