Table 1.

Coefficients of polynomial equations describing speed of sound in relation to temperature, alongside standard deviations of experimental measurements.

Authors	${\mathit{a}}_0$	${\mathit{a}}_1$	${\mathit{a}}_2$	${\mathit{a}}_3$	${\mathit{a}}_4$	${\mathit{a}}_5$	Standard Deviation (mm/s)
Greenspan and Tschiegg [29]	$3.0449\times {10}^{-9}$	$-1.45262\times {10}^{-6}$	$3.31636\times {10}^{-4}$	$-5.79506\times {10}^{-2}$	$5.03358$	$1402.736$	26.3
Wilson [30]	0	$-8.248896\times {10}^{-7}$	$2.8873\times {10}^{-4}$	$-5.69215\times {10}^{-2}$	$5.02475$	$1403.013$	160
Del Grosso and Mader [28]	$3.146\times {10}^{-9}$	$-1.478\times {10}^{-6}$	$3.342\times {10}^{-4}$	$-5.80852\times {10}^{-2}$	$5.03711$	$1402.388$	2.8