National foreword

This British Standard is the UK implementation of ISO 14714:2024. It supersedes BS ISO 14714:1998, which is withdrawn.

The UK participation in its preparation was entrusted to Technical Committee W/-, Consumer Products and Services Sector Policy and Strategy Committee.

A list of organizations represented on this committee can be obtained on request to its committee manager.

Contractual and legal considerations

This publication has been prepared in good faith, however no representation, warranty, assurance or undertaking (express or implied) is or will be made, and no responsibility or liability is or will be accepted by BSI in relation to the adequacy, accuracy, completeness or reasonableness of this publication. All and any such responsibility and liability is expressly disclaimed to the full extent permitted by the law.

This publication is provided as is, and is to be used at the recipient’s own risk.

The recipient is advised to consider seeking professional guidance with respect to its use of this publication.

This publication is not intended to constitute a contract. Users are responsible for its correct application.

Compliance with a British Standard cannot confer immunity from legal obligations.

This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 October 2024.

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 document 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).

ISO draws attention to the possibility that the implementation of this document may involve the use of (a) patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a) patent(s) which may be required to implement this document. However, implementers are cautioned that this may not represent the latest information, which may be obtained from the patent database available at www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.

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This document was prepared by Technical Committee ISO/TC 54, Essential oils.

This second edition cancels and replaces the first edition (ISO 14714:1998), which has been technically revised.

The main changes are as follows:

in the title and scope, the word “residual” has been removed;
the structure of the document has been changed;
in the scope, “around 10 ppm” has been replaced by “from 1 to 10 mg/kg”;
in 6.2, the type of the recommended column has been changed;
in 6.3, the title of the subclause has been changed and additional information of the mass spectrometer has been added;
in 9.1.3, precisions have been added for building the calibration curves with Flame ionization detector (FID) or by mass spectrometer detection;
in 9.2.3, precisions have been added for determining benzene content by mass spectrometer detection.

Any feedback or questions on this document should be directed to the user’s national standards body. A complete listing of these bodies can be found at www.iso.org/members.html.

1 Scope

This document describes a method for determining the traces of benzene in essential oils and aromatic extracts, using static head space gas chromatography.

It applies to contents from 1 mg/kg to 10 mg/kg in the analysed product.

2 Normative references

3 Terms and definitions

4 Principle

5 Reagents and products

5.1

5.2

6 Apparatus

6.1

6.2 Column.

6.3

6.4

7 Preparation of test sample

8 Operating conditions

8.1 Chromatographic operating conditions

8.2 Static headspace sampler operating conditions

9 Quantitative analysis method

9.1 External calibration curve

9.2 Quantitative analysis

10 Precision

10.1 Results of the interlaboratory test

10.2 Repeatability

10.3 Reproducibility

11 Test report

BS ISO 14714:2024

Essential oils and aromatic extracts. Determination of benzene content

Current

Published:

31 Oct 2024