ISO 4716:1987

Oil of vetiver (Vetiveria zizanioides (Linnaeus) Nash)

The Standard specifies certain characteristics of the oil, among others: Appearance: Viscous liquid. Colour: Brown to reddish brown. Odour: Characteristic. Relative density at 20/20 °C: 0,990 – 1,015 1); 0,986 – 0,998 2). Refractive index at 20 °C: 1,5220 – 1,5300 1); 1,5210 – 1,5260 2). Optical rotation at 20 °C: + 19 – + 30 1); + 22 – + 38 2). Solubility in 80 % (V/V) ethanol at 20 °C: 1 volume in not more than 2 volumes. Acid value: Maximum 35 1); 14 2). Ester value: 5 – 16. Carbonyl value: 44 – 68 1); 23 – 59 2). 1) Country of origin R union; 2) Country of origin Haiti