ISO 4727:1988 Preview
Oil of palmarosa (Cymbopogon martinii (Roxburgh) W. Watson var. motia)
This standard was last reviewed and confirmed in 2014. Therefore this version remains current.
The Standard specifies the following characteristics of the oil. Appearance: Clear, mobile liquid. Colour: Pale yellow. Odour: Characteristic rose like, with grassy note. Relative density at 20/20 °C: 0,880 - 0,894. Refractive index at 20 °C: 1,4710 - 1,4780. Optical rotation at 20 °C: Range from - 1,4 to + 3 . Miscibility with 70 % (V/V) ethanol at 20 °C: 1 : 2. Acid value: Maximum 1,0. Further on permissible values for ester value, free alcohols content and ester value after acetylation are given. Two typical chromatograms are shown.