ISO 11043 pdf download.Oil of basil, methyl chavicol type ( Ocimum basilicum L.)
1 Scope
This International Standard specifies certain character- istics of the oil of basil, methyl chavicol type 1 ) ( Ocimum basilicum L.), in order to facilitate assess- ment of its quality.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provi- sions of this International Standard. For dated refer- ences, subsequent amendments to, or revisions of, any of these publications do not apply. However, par- ties to agreements based on this International Stan- dard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 21 0, Essential oils — General rules for packaging, conditioning and storage. ISO 21 1 , Essential oils — General rules for labelling and marking of containers. ISO 21 2, Essential oils — Sampling. ISO 279, Essential oils — Determination of relative density at 20 °C — Reference method. ISO 280, Essential oils — Determination of refractive index.ISO 592, Essential oils — Determination of optical rotation. ISO 875, Essential oils — Evaluation of miscibility in ethanol. ISO 1 1 024-1 , Essential oils — General guidance on chromatographic profiles — Part 1 : Preparation of chromatographic profiles for presentation in standards. ISO 1 1 024-2, Essential oils — General guidance on chromatographic profiles — Part 2: Utilization of chromatographic profiles of samples of essential oils.
3 Term and definition
For the purposes of this International Standard, the following term and definition apply. 3.1 oil of basil, methyl chavicol type essential oil obtained by steam distillation of the leaves of Ocimum basilicum L., of the Lamiaceae family
4 Requirements
4.1 Appearance Liquid. 4.2 Colour Pale yellow to amber yellow.4.3 Odour Characteristic, spicy, slightly aniseed. 4.4 Relative density at 20 °C, 20 20 d Minimum: 0,948 Maximum: 0,970 4.5 Refractive index at 20 °C Minimum: 1 ,51 0 0 Maximum: 1 ,520 0 4.6 Optical rotation at 20 °C Range from 21 ° to +2°. 4.7 Miscibility in 80 % ethanol (volume fraction) at 20 °C 1 volume of the oil shall not require more than 7 vol- umes of 80 % ethanol at 20 °C to give a clear solution. 4.8 Chromatographic profile Analysis of the essential oil shall be carried out by gas chromatography. In the chromatogram obtained, the representative and characteristic components shown in Table 1 shall be identified. The proportions of these components, indicated by the integrator, shall be as shown in Table 1 . This constitutes the chroma- tographic profile of the essential oil. 4.9 Flashpoint Information on the flashpoint is given in annex B.
5 Sampling
See ISO 21 2. Minimum volume of final sample: 25 ml. NOTE This volume allows each of the tests specified in this International Standard to be carried out at least once.
6 Test methods
6.1 Relative density at 20 °C, 20 20 d See ISO 279. 6.2 Refractive index at 20 °C See ISO 280. 6.3 Optical rotation at 20 °C See ISO 592 6.4 Miscibility in 80 % ethanol (volume fraction) at 20 °C See ISO 875. 6.5 Chromatographic profile See ISO 1 1 024-1 and ISO 1 1 024-2.