SEDL / STP / STP1116-EB / STP16368S

Interlaboratory Comparison of the Apparent Thermal Conductivity of a Fibrous Batt and Four Loose-Fill Insulations

McCaa, DJ
CertainTeed Corporation, Blue Bell, PA

Smith, DR
Chemical Eng., National Institute of Standards and Technology, Boulder, CO

Desjarlais, A
HolometrixOak Ridge National LaboratoryOwens-Corning FiberglasKnauf FiberglassFiberglas Canada, Pt.NAHB National Research CenterManville Sales CorporationNational Institute of Standards and Technology, CambridgeOak RidgeGranvilleShelbyvilleEdwardUpper MarlboroDenverGaithersburg, MATNOHINOntarioMDCOMD

Graves, RS
HolometrixOak Ridge National LaboratoryOwens-Corning FiberglasKnauf FiberglassFiberglas Canada, Pt.NAHB National Research CenterManville Sales CorporationNational Institute of Standards and Technology, CambridgeOak RidgeGranvilleShelbyvilleEdwardUpper MarlboroDenverGaithersburg, MATNOHINOntarioMDCOMD

Mumaw, J
HolometrixOak Ridge National LaboratoryOwens-Corning FiberglasKnauf FiberglassFiberglas Canada, Pt.NAHB National Research CenterManville Sales CorporationNational Institute of Standards and Technology, CambridgeOak RidgeGranvilleShelbyvilleEdwardUpper MarlboroDenverGaithersburg, MATNOHINOntarioMDCOMD

Noonan, P
HolometrixOak Ridge National LaboratoryOwens-Corning FiberglasKnauf FiberglassFiberglas Canada, Pt.NAHB National Research CenterManville Sales CorporationNational Institute of Standards and Technology, CambridgeOak RidgeGranvilleShelbyvilleEdwardUpper MarlboroDenverGaithersburg, MATNOHINOntarioMDCOMD

Scott, JA
HolometrixOak Ridge National LaboratoryOwens-Corning FiberglasKnauf FiberglassFiberglas Canada, Pt.NAHB National Research CenterManville Sales CorporationNational Institute of Standards and Technology, CambridgeOak RidgeGranvilleShelbyvilleEdwardUpper MarlboroDenverGaithersburg, MATNOHINOntarioMDCOMD

Sikund, R
HolometrixOak Ridge National LaboratoryOwens-Corning FiberglasKnauf FiberglassFiberglas Canada, Pt.NAHB National Research CenterManville Sales CorporationNational Institute of Standards and Technology, CambridgeOak RidgeGranvilleShelbyvilleEdwardUpper MarlboroDenverGaithersburg, MATNOHINOntarioMDCOMD

Troyer, R
HolometrixOak Ridge National LaboratoryOwens-Corning FiberglasKnauf FiberglassFiberglas Canada, Pt.NAHB National Research CenterManville Sales CorporationNational Institute of Standards and Technology, CambridgeOak RidgeGranvilleShelbyvilleEdwardUpper MarlboroDenverGaithersburg, MATNOHINOntarioMDCOMD

Zarr, R
HolometrixOak Ridge National LaboratoryOwens-Corning FiberglasKnauf FiberglassFiberglas Canada, Pt.NAHB National Research CenterManville Sales CorporationNational Institute of Standards and Technology, CambridgeOak RidgeGranvilleShelbyvilleEdwardUpper MarlboroDenverGaithersburg, MATNOHINOntarioMDCOMD

Pages: 24    Published: Jan 1991

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Abstract

An interlaboratory comparison of measurements of the apparent thermal conductivities of four loose-fill insulations was conducted according to ASTM Standard Practice C 687 in order to prepare a revised statement of precision and bias. The apparatus used included one guarded hot plate, one thin-heater apparatus, and eight heat-flow meters. All specimens were tested at a mean temperature of 24 °C (75 °F). Test results for fibrous glass blanket were used to characterize the basic imprecision (numerical measure of precision) of the test instruments. The 2σ imprecisions of measurement of apparent thermal conductivity were 2.8% for fibrous glass blanket, 5.8% for cellulose, 9.4% for unbonded glass fiber, 10.5% for mineral wool, and 5.0% for perlite.