1.1 ,This test method describes the determination of thermal conductivity of homogeneous, non-porous solid materials in the range of 0.10 W/(K ,•, ,m) to 1.0 ,W/(K ,•, ,m) by modulated temperature differential scanning calorimeter. This range includes many polymeric, glass, and ceramic materials. Thermal diffusivity, which is related to thermal conductivity through specific heat capacity and density, may also be derived. Thermal conductivity and diffusivity can be determined at one or more temperatures over the range of 0°,C to 90°,C.