The infinite dilution activity coefficients of alkanol (methanol, ethanol, 1-propanol or 2-propanol) or ether (diethyl ether, methyl tertiary butyl ether, diisopropyl ether or bis(2,2,2-trifluoroethyl) ether) in aqueous solution were measured in the region of 283.15-313.15 K using the gas stripping method. The experimental results were correlated by the modified ASOG previously proposed.