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Deviations from pressures calculated with REFPROP5 for the mixture R1234yf (1)+ R1234ze (E) (2) as a function of temperature for data measured in this work ■ (x1 = 0.3241), + (x1 = 0.6382), Al Ghafri et al.36 Δ and Ye et al.38 ○. Dashed curves (- - -) represent approximate experimental uncertainty bounds for x1 = 0.3241 and solid curves for x1 = 0.6382.
