AbstractThe absolute intensities of the 802 cm−1Raman line of liquid cyclohexane at 514.5 and 337.1 nm excitations were determined by applying the local field correction theory to corresponding absolute intensities of cyclohexane vapour. By using this Raman line as an external intensity standard, the absolute Raman intensities of the 992 cm−1line of benzene and the 666 and 762 cm−1lines of chloroform were measured in the liquid phase. The gaseous absolute intensities were also measured for some molecules including benzene and chloroform and comparisons between the gas and liquid phase Raman intensities were