Viscosity of {xCO2 + (1−x)CH4} with x = 0.5174 for temperatures between (229 and 348)K and pressures between (1 and 32) MPa Locke, C.R.; Stanwix, P.L.; Hughes, T.J.; Johns, M.L.; Goodwin, A.R.; Marsh, K.N.; Galliero, G.; May, E.F.; The Journal of Chemical Thermodynamics 2015, 87, 162-167