The turbidity (τ ) measurements of Güttinger and Cannell (Phys Rev A 24:3188-3201, 1981) in the temperature range 28 mK ≤ T − T c ≤ 29 K along the critical isochore of homogeneous xenon are reanalyzed. The singular behaviors of the isothermal compressibility (κ T ) and the correlation length (ξ ) predicted from the master crossover functions are introduced in the turbidity functional form derived by Puglielli and Ford (Phys Rev Lett 25:143-146, 1970). We show that the turbidity data are thus well represented by the Ornstein-Zernike approximant, within 1 % precision. We also introduce a new crossover master model (CMM) of the parametric equation of state for a simple fluid system with no adjustable parameter. The CMM model and the phenomenological crossover parametric model are compared with the turbidity data and the coexisting liquid-gas density difference ( ρ LV ). The excellent agreement observed for τ , κ T , ξ , and ρ LV in a finite temperature range well beyond the Ising-like preasymptotic domain confirms that the Ising-like critical crossover behavior of xenon can be described in conformity with the universal features estimated by the renormalization-group methods. Only 4 critical coordinates of the vapor-liquid Y. Garrabos · C. Lecoutre · S. Marre · R. Guillaument CNRS, ICMCB-ESEME, UPR 9048,

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