Fig. 13. Relative errors in (a) volumetric heat capacity (C) and (b) thermal diffusivity (k) that occur when the model of Bristow et al. (1994) (Eq. [19] and [20]) is used to compute k and C rather than the model with ABC (Eq. [18]). Relative errors are shown for sample heights (c) of 3, 6, 12, 15, and 21 cm and probe length (c₀) of 3 cm.