ISO 18321:2015

Essential oils — Determination of peroxide value

ISO 18321:2015 specifies a method for the determination of the peroxide value in an essential oil. The peroxide value is a measure of the oxidation present.

Huiles essentielles — Détermination de l'indice de peroxyde

General Information

• Status: Published
• Publication Date: 12-May-2015
• ICS: 71.100.60 - Essential oils
• Technical Committee: ISO/TC 54 - Essential oils
• Drafting Committee: ISO/TC 54 - Essential oils
• Current Stage: 9093 - International Standard confirmed
• Completion Date: 15-Sep-2020

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 18321
First edition
2015-05-15
Essential oils — Determination of
peroxide value
Huiles essentielles — Détermination de l’indice de peroxyde
Reference number
ISO 18321:2015(E)
©
ISO 2015

---------------------- Page: 1 ----------------------
ISO 18321:2015(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2015, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. [phone]
Fax [phone]
[e-mail]
www.iso.org
ii © ISO 2015 – All rights reserved

---------------------- Page: 2 ----------------------
ISO 18321:2015(E)

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Reagents . 1
6 Apparatus . 2
7 Sampling . 2
8 Preparation of test sample . 2
9 Procedure. 2
9.1 Test portion . 2
9.2 Determination . 3
9.3 Automated potentiometric titration . 3
10 Expression of results . 3
10.1 Calculation . 3
10.2 Conversion from mmol/l to meq/kg . 3
11 Precision . 4
11.1 Repeatability . 4
11.2 Reproducibility . 4
Bibliography . 5
© ISO 2015 – All rights reserved iii

---------------------- Page: 3 ----------------------
ISO 18321:2015(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 (see 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 (see 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.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers
to Trade (TBT), see the following URL: Foreword — Supplementary information.
The committee responsible for this document is ISO/TC 54, Essential
...