Expressions for δ and δ-components	${\delta }_{tot}=\left({\mathrm{F}}_i+\mathrm{B}/\overline{n}\right)/\mathrm{V}$, B = 277${\delta }_p={\delta }_{tot}{\left(\frac{1}{{\alpha }^{(P)}}\frac{{\mathrm{F}}_p}{{\mathrm{F}}_t+\mathrm{B}/\overline{n}}\right)}^{1/2}$, ${\delta }_h={\delta }_{tot}{\left[\left({\alpha }^{(P)}-1\right)/{\alpha }^{(P)}\right]}^{1/2}$, ${\delta }_d={\left({\delta }_{tot}^2-{\delta }_p^2-{\delta }_h^2\right)}^{1/2}$,
Additive molar functions	Ft = ΣNiFt,i, Fp = ΣNiFp,i, V = ΣNiVi, ΔT (P) = ΣNi ΔT T,i (P),
Auxiliary equations	α(P) = 777 ΔT(P)/V, n = 0.5/ΔT(P),