Essential oil of rose, Chinese Kushui type (Rosa sertata x Rosa rugosa)

ISO 25157:2013 specifies certain characteristics of the essential oil of rose, Chinese Kushui type (Rosa sertata × Rosa rugosa) cultivated mainly in China, in order to facilitate assessment of its quality.

Huile essentielle de rose, type chinois Kushui (Rosa sertata x Rosa rugosa)

General Information

Status
Published
Publication Date
09-Apr-2013
Technical Committee
Drafting Committee
Current Stage
9093 - International Standard confirmed
Start Date
07-Sep-2018
Completion Date
07-Sep-2018
Ref Project

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ISO 25157:2013 - Essential oil of rose, Chinese Kushui type (Rosa sertata x Rosa rugosa)
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INTERNATIONAL ISO
STANDARD 25157
First edition
2013-04-15
Essential oil of rose, Chinese Kushui
type (Rosa sertata × Rosa rugosa)
Huile essentielle de rose, type chinois Kushui (Rosa sertata × Rosa
rugosa)
Reference number
ISO 25157:2013(E)
ISO 2013
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ISO 25157:2013(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2013

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form

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ii © ISO 2013 – All rights reserved
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ISO 25157:2013(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards

bodies (ISO member bodies). The work of preparing International Standards is normally carried out

through ISO technical committees. Each member body interested in a subject for which a technical

committee has been established has the right to be represented on that committee. International

organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.

ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of

electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2, www.iso.org/directives.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received, www.iso.org/patents.

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.
The committee responsible for this document is ISO/TC 54, Essential oils.
© ISO 2013 – All rights reserved iii
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INTERNATIONAL STANDARD ISO 25157:2013(E)
Essential oil of rose, Chinese Kushui type (Rosa sertata ×
Rosa rugosa)
1 Scope

This International Standard specifies certain characteristics of the essential oil of rose, Chinese Kushui

type (Rosa sertata × Rosa rugosa) cultivated mainly in China, 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 — General rules for packaging, conditioning and storage

ISO/TR 211, Essential oils — General rules for labelling and marking of containers

ISO 212, 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 709, Essential oils — Determination of ester value
ISO 1041, Essential oils — Determination of freezing point

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 rose, Chinese Kushui type

essential oil obtained by steam distillation of the flowers of Rosa sertata × Rosa rugosa cultivated

mainly in China
[2]
Note 1 to entry: For information on the CAS number, see ISO/TR 21092.
4 Requirements
4.1 Appearance
Liquid or more or less crystallized.
4.2 Colour
Light yellow or yellow brown.
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ISO 25157:2013(E)
4.3 Odour
Characteristic, full-bodied, floral, rose.
Relative density at 20 °C d
Minimum: 0,880.
Maximum: 0,930.
4.4 Refractive index at 20 °C
Minimum: 1,4680.
Maximum: 1,4798.
4.5 Optical rotation at 20 °C
Between −10,3° and −0,5°.
4.6 Freezing point
Between 11 °C and 14 °C.
4.7 Ester value
Minimum: 18.
Maximum: 24.
4.8 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.
4.9 Flashpoint
Information on the flashpoint is given in Annex B.
5 Sampling
Sampling shall be performed in accordance with ISO 212.
Minimum volume of test sample: 25 ml.

NOTE This volume allows each of the tests specified in this International Standard to be carried out at least once.

2 © ISO 2013 – All rights reserved
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ISO 25157:2013(E)
Table 1 — Chromatographic profile
Minimum Maximum
Components
% %
Ethanol n.d. 1,0
cis-Rose oxide n.d. 0,5
Linalool 1,0 3,5
β-Phenylethyl alcohol n.d. 0,3
Citronellol 40,0 50,0
...

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