ISO 3061:1979

Oil of black pepper

The Standard specifies the following characteristics of the oil. Appearance: Clear, mobile liquid. Colour: Almost colourless to bluish-green. Odour: Characteristic, recalling that of whole pepper. Relative density at 20/20 °C: 0,870 – 0,890. Refractive index at 20 °C: 1,4800 – 1,4920. Optical rotation at 20 °C: Range from – 16 to + 4 . Miscibility with 95 % (V/V) ethanol at 20 °C: 1 : 3. Ester value: Maximum 11.