BS ISO 17382 pdf download

BS ISO 17382 pdf download Oil of magnolia flower, China type (Michelia × alba DC)
Scope
ThisInternationalStandard specifiescertaincharacteristics of the oil of Magnolia flower, Chinatype (Michelia x alba DC), in order to facilitateassessment of its quality.
2Normative references
followingThereferenceddocumentsareindispensable for the application of this documentFor dated references, only the edition cited applies.For undated references, the latest edition of thereferenced document (including any amendments)applies.
ISO/TR 210，Essential oils一 General rules forpackaging,conditioning and storage
ISO/TR 211，Essential oils一 General rules forlabelling and marking of containers
ISO 212，Essential oils- Sampling
SO 279，Essential oils – Determination of relativedensity at 20CReference method)
ISO 280，Essential oils -Determinationofrefractive index
ISO 592，Essential oils Determination of opticalrotation
ISO 709，Essential oils 一 Determination of estelvalue
SO 875，Essential oils 一 Evaluation of miscibility irethanol
ISO 1242，Essential oils 一 Determination of acidvalue
SO 1271Essential oils 一Determinationotcarbony/ value- Free hydroxylamine method
SO 4715，Essential oils 一 Quantitative evaluationof residue on evaporation
SO 11024-1.Essential oils – General guidance orchromatographic profiles-Part 1: Preparation ochromatographicprofiles forpresentationstandards
ISO 11024-2.Essential oils – General quidance orchromatographic profiles一 Part 2: Utilization ochromatographic profiles of samples ofessential oils
3Terms and definitions
For the purposes of this document,the followingterms and definitions apply.
3.1
oil of Magnolia flower, China typeessential oil obtained by steam distillation of theflowerMichelia x alba DC， of the Magnoliaceafamily， growing wild or cultivated in the south oChina
NOTEFor information on the CAS number，seeISO/TR 21092.
Requirements4
4.1Appearance
Clear, transparent, mobile liquid
Colour4.2
Pale yellow to amber.
4.3Odour
Flowery, characteristic of Magnolia flower
4.4 Relative density at 20 ·C,20
20
0,880Minimum:
0,910Maximum:
4.5Refractive index at 20·C
Minimum:1,465Maximum:1,490
4.6 Optical rotation at 20 C
Range from -15to -5
4.7 Miscibility in ethanol.95 %(volume fraction), at 20 C
It shall not be necessary to use more than 1 volume ofethanol 95% (volume fraction) to obtain a clearsolution with 1 volume of essential oil.
4.8 Acid value
Maximum:8,5
4.9 Ester value
Minimum:2050Maximum:
4.10 Residue on evaporation
Maximum:15%
4.11 Carbonyl value
Maximum:60
4.12 Chromatographic profile
Analysis of the essential oil shall be carried out by gaschromatography. In the chromatogram obtained, therepresentative and characteristic components shownin Table 1 shall be identified. The proportions of thesecomponents,indicated by the integrator, shall be asTable 1.Thisconstitutestheshowninchromatographic profile of the essential oil.
4.13 Flashpoint
Information on the flashpoint is given in Annex B