ISO 770:1980 PDF

The Standard specifies certain characteristics of the oil. The oil shall be clear and almost colourless to pale yellow, the odour characteristic, recalling cineole. The relative density at 20/20 °C has to ly between 0,906 and 0,925 and the refractive index at 20 °C between 1,4590 and 1,4670. The optical rotation shall range from 0 to + 10 . 1 volume of the oil shall not require more than 5 volumes of 70 % (V/V) ethanol at 20 °C to obtain a clear solution. The minimum of 1,8-cineole content shall be 70 %.