NIST/NRC-Canada interlaboratory comparison of guarded hot plate measurements: 1993-1997

Thermal conductivity measurements from an international interlaboratory study between the UnitedStates and Canada are presented for two materials, glass-fiber board and fibrous alumina silica. Themeasurements were detennined using guarded hot plate apparatus at the National Institute ofStandards and Technology and at the National Research Council Canada. The nominal bulk densitiesand thicknesses for the specimens of glass-fiber board and fibrous alumina silica were 160 kglml and25.1 mm, and 290 kglm3 and 25.2 mm, respectively. Measurements of thermal conductivity wereconducted over a temperature range of273 K to 340 K. Statistical regression analyses of the dataare presented.Peer reviewed: NoNRC publication: Ye