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ISO 9841:2013 pdf free

ISO 9841:2013 pdf free.Essential oil of hyssop (Hyssopus officinalis L. ssp. officinalis)
ISO 9841 specifies certain characteristics of essential oil of hyssop (Hyssopus officinalis L. ssp officinalis), with a view to facilitating the assessment of its quality.
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 1242, Essential oils一Determination of acid value
ISO 11024 (all parts) Essential oils一General guidance on chromatographic profiles
For the purposes of this document, the following terms and definitions apply.
essential oil obtained by steam distillation of the leaves of Hyssopus fficinalis L. ssp fficinalis of the Lamiaceae family
Note 1 to entry: For information on 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.
For safety reasons, transport companies, insurance companies, and people in charge of safety services require information on the flashpoints of essential oils, which, in most cases, are flammable products.
A comparative study on the relevant methods of analysis (see ISO/TR 11018[1) concluded that it was difficult to recommend a single apparatus for standardization purposes, given that
– there is a wide variation in the chemical composition of essential oils,
– the volume of the sample needed in certain requirements would be too costly for high-priced essential oils, and
– as there are several different types of equipment which can be used for the determination, users cannot be expected to use one specified type only.ISO 9841 pdf download.

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