BS ISO 8896:2016 pdf free
BS ISO 8896:2016 pdf free.Essential oil of caraway (Carum carvi L.)
This International Standard specifies certain characteristics of the essential oil of caraway (Carum carvi L.), 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/TS 210, Essential oils一General rules for packaging, conditioning and storage
ISO/TS 211, Essential oils一General rules for labelling and marking of containers
ISO 212, Essential oils一Sampling
IS0 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 miscibility in ethanol
ISO 1242, Essential oils一Determination of acid value
ISO 11024 (all parts), Essential oils – 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 Caraway
essential oil obtained by steam ditilation from the dried, ripe fruit of caraway (Carum carvi L.) of the Apiaceae family
Note 1 to entry: For information on the CAS number, see ISO/TR 21092.
4.8 Miscibility in ethanol 80 % (volume fraction) at 20 °C
It shall not be necessary to use more than 3 volumes of ethanol 80 % (volume fraction) to obtain a clear solution with 1 volume of essential oil.
Sometimes opalescence can arise on continuing the addition of ethanol.
4.9 Chromatographic profile
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 of these components, indicated by the integrator, shall be as shown in Table 1. This constitutes the chromatographic profile of the essential oil.
Determine the refractive index in accordance with ISO 280.
Determine the optical rotation in accordance with ISO 592.
Determine the acid value in accordance with ISO 1242.BS ISO 8896 pdf download.
