An experiment on turbidity has been done on the binary liquid system of succinonitrile and water close to the critical point. The data were analyzed assuming Ornstein-Zernike scattering, which allowed the critical exponents γ and ν to be held constant while the parameters: turbidity τo, correlation length amplitude χo, and the background turbidity τb were determined with a fit. The data were then compared to published data, and two-scale-factor universality was tested.