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ISO 4716:2013 pdf free

ISO 4716:2013 pdf free.Essential oil of vetiver
ISO 4716 specifies certain characteristics of the essential oil of vetiver [Chrysopogon zizanioides (L.) Roberty, syn. Vetiveria zizanioides (L) Nash], growing in Reunion Island, China, Haiti, Indonesia, Madagascar, Brazil, and Comoros Island in order to facilitate assessment of its quality.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO/TR 210, Essential oils一General rules for packaging, conditioning and storage
ISO/TR 211, Essential oils一General rules for lblling and marking of containers
ISO 212, Essential oils一Sampling
ISO 279, Essential oils一Determination of relative density at 20 °C一Reference method
ISO 280, Essential oils一Determination of refractive index
ISO 592, Essential oils一Determination of optical rotation
ISO 875, Essential oils一Evaluation of rmiscibility in ethanol
ISO 1242, Essential oils一Determination of acid value
ISO 11024 (all parts), Essential oils一General guidance on chromatographic profiles
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1 essential oil of vetiver
essential oil obtained by steam distillation of the roots of Chrysopogon zizanioides (L) Roberty, syn. Vetiveria zizanioides (L.) Nash of the Poaceae family
Note 1 to entry: For information on the CAS number, see ISO/TR 21092.[2].
Carry out the analysis of the essential oil by gas chromatography. Identify in the chromatogram obtained the representative and characteristic components shown in Table 1. The proportions ofthese components, indicated by the integrator, shall be as shown in Table 1. This constitutes the chromatographic profile
of the essential oil.
Important一Due to the viscosity of this essential oil, it is necessary to dilute it with 1,8-cineole so that the final mass fraction of each component in the mixture is 50 %. It is also recommended to use a polyethylene glycol type polar column. There will be two integrations, with and without 1,8-cineole.ISO 4716 pdf download.

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