AS 2113.2-1998 (R2013) pdf free.Oil of Australian eucalyptus – Part80:80 to 85% cineole.
This specification lays down certain characteristics of oil of eucalyptus of 80 to 85 percent cineole content.
3 DEFINITIONS For the purpose of this Standard, the definitions below apply.
3.1 Oil of Australian eucalyptus-the oil obtained by the steam distillation from foliage and branchlets of any suitable species of eucalyptus provided that the oil conforms with the remainder of this specification. The oil may be rectified if necessary.
3.2 Laboratory sample-a sample as prepared for sending to the laboratory for inspection and testing and being representative of the bulk.
4.1 Preparation of the laboratory sample A minimum volume of 50 mL of oil collected in accordance with ISO 356 shall be supplied as the laboratory sample.
4.2 General description A clear, colourless to pale yellow liquid, mobile at 20C and with the characteristic odour of 1, 8-cineole.
4.3 Relative density at 20’C/20C When determined in accordance with ISO279, the ratio of the mass of a given volume of the oil to that of an equal volume of distilled water shall be in the following range.
(a) Minimum: 0.906.
(b) Maximum: 0.928.
4.4 Refractive index When measured in accordance with Iso 280 at a wavelength of
589.3 ±0.3 nm (corresponding with the D line of the sodium spectrum), the refractive
index of the oil at 20°C shall be in the following range:
(a) Minimum: 1.4575.
(b) Maximum: 1.4645.
4.5 Optical rotation When determined in accordance with ISO 592. the optical
rotation of oil at 20°C using light of wavelength 589.3 ±0.3 nm (corresponding with the D
line of the sodium spectrum) shall be in the range —2° to +5°.
4.6 Miscibility in ethanol When tested in accordance with ISO 875 at 20°C, one volume of oil shall not require more than three volumes of diluted ethanol (700 mL/L) to provide a clear solution.
4.7 1,8 Cineole content When determined in accordance with ISO 1202, the cincole content shall be in the following range:
(a) Mininuim: 80 percent (m/m).
(b) Maximum: 85 percent (m/ m).